Computer Support Forum

Unknown Disk Partition

Question: Unknown Disk Partition

I believe i was attacked with a virus that messed up my OS booting. The Blue screen pops instantly after the attack. I restarted and the Blue Screen pops up again. I tried to load it with the settings that worked and the blue screen came up once again. I tried safe mode as well and still no change, same blue screen. As usual I thought a reformat would do the trick.I booted with my winxp cd and wanted to reinstall a fresh copy and i saw

Unknown Disk
(there is no disk in the drive)

Unknown Disk
(there is no disk in the drive)

I restarted the comp and rebooted with the cd and i ran the Repair Console
I typed in fixmbr to fix the issue. But the same Unknown Disk was still there when i tried to reinstall again. I did a chkdsk with Repair Console and the ' The Volume appears to contain one or more unrecoverable problems' msg appears.

I'm lost with what to do now

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Preferred Solution: Unknown Disk Partition

I recommend downloading and running Reimage. It's a computer repair tool that has been proven to identify and fix many Windows problems with a high level of success.

I've used it in the past to identify and fix everything from blue screens (BSOD's), ActiveX errors, corrupt files and processes, dll/exe/sys errors, recover lost memory, Windows update problems, defragging, malware removal etc.

You can download it direct from this link (This link will automatically start a download of Reimage that you can save to your computer.)

Answer: Unknown Disk Partition

Make and model of PC please

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The computer[nt4.0 server with service pack 6a] was running fine with two physical hardisk both running on ntfs. Later when I installed the the modem i just couldnot install it. The modem was not detected and the system just stoped booting also. I installed a fresh nt 4.0 on the same primary hardisk formating it as fat. Instalation is sucessful. But the operating system cannot access the secondary hardisk which is ntfs. The disk manager shows the disk but says "partition unknow" although it is ntfs. When i open the file manager and try to access the secondary hard drive it says "drive is not readable. disk structure is curupt and unreadable".When I right click on the drive and i hit properties i do not see the sercurity tab. Since I have reinstalled the operating system the service pack right now is service pack 1.
I want to recover data from the secondary hardisk which I can not access please help.

Answer:ntfs partition is unknown by disk manager

Did you overwrite your original install? If not, you may be able to repair it. I would try to convert the current partition to NTFS, but that may not help. Partitions created by disk administrator can be difficult for another OS (other than the one that created it) to work with. You may be able to save the data using ghost to take a picture of the second partition, then wipe it out and re-create it and use ghost to replace the original data. That may work. Hope it helps.

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I am experiencing the same issue as with jenny123 but with an additional problem. I am troubleshooting a Seagate FreeAgent GoFlex 1TB external hard drive for my buddy. It is previously working but one day, it is not detected anymore by any device. It is found in the Disk Management however, it is listed as Unknown, Not Initialized, and not showing the partition as shown in the screenshot.

When I try to change it from Offline to Online, I am encountering the error:
"Virtual Disk Manager: The system cannot find the file specified"

I also used the DISKPART in cmd but it is not showing Disk 1 as shown below.

The external hard drive is found in disk drives but it is not showing it's model name.

I tried all the recommended software (partition wizard, testdisk, icare) but still no luck. I also tried searching online for an answer but there's no closure to their issues as well. Hope someone can help on this as he need a) the drive and b) recover the files in the external drive. Thanks!

EDIT: The drive can be seen in the Devices and Printers as shown below.

Answer:Disk unknown, not initialized, and not showing partition


For any serious troubleshooting, diagnostics or recovery attempt, you should always connect an HDD to a direct SATA port. Usually you can easily remove the header of any Seagate Golex drive and then connect it to an internal SATA port.

Let us know what "Disk Management" reports when you connect the drive directly.

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Hi, I just got a new Y570 Laptop with a 64 gb ssd. In the disk management window, there are two hard drives listed. There is a disk 0, which has four partitions on it, and a disk 1 which is unknown and initialized. Disk 0 is the HDD that comes with the computer. When I try to initialize Disk 1, I get a message saying The disk cannot find the sector requested. What does this mean? Also, is disk 1 the ssd that I'm supposed to have? Another problem:On my hdd, I have an empty partition that says Healthy (OEM partition). It has no file system or letter assigned to it. It is 14.75 gb, and according to disk management, all 14.75 gb are free. What is it, and can I delete it without affecting anything else on my computer?

Answer:Y570 Unknown Disk 1 Not initialized/OEM Partition

hi galaxion2,first of all, do not delete the 14.75 gb partition. it's hidden/system partition that your computer will need to use it during one key recover process.secondly, as you noticed, disk1 is ssd.

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Hello. I am trying to reformat my computer and I have ran into a problem. i have tried to reformat using both Windows XP Home and Pro. When I pop in the CD and Boot from it all goes well until I reach the Partition selection screen. Instead of the list of drives and partitions I see this message in the box. It is repeated four times.

Unknown Disk

<There is no Disk in this drive.>
I am confused by this and i am not sure what I should do. i was thinking this could be caused by the fact that the necessary drivers are not present when I try to reformat, but if this was the case wouldn't I get the message before I even got to the Partition Selection screen? That has happened before and simple slims stream of the appropriate drivers fixes it just fine. So would a slipstream of the drivers fix this problem as well? I am hoping someone knows how i can fix this problem and have a successful reformat. This problem is on an HP Pavilion a1530n running Windows XP Media Center Edition. Thanks in advance.

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I was in the process of updating several sata controllers and chipset drivers. I also installed a new USB 3.0 hub and was in the process of moving around several devices between ports. I had a problem with my keyboard which uses USB 2.0 as a connector but I would recieve a "Unknown USB Device (Port Reset Failed)" code 43 on every port on the USB 3.0 Hub. I finally gave up and put the keyboard back into the 2.0 ports on my motherboard. When I finally fixed everything. I realized my DVD drive was not working. I had to reconnect the SATA cables because it got disconnected while I was moving my PC around. Upon the last restart of my PC.

I checked Disk Managment and noticed lots of system reserved partitions and drives which were not there before. I have no idea what happened but I think updating several drivers and the combination of reinstalling USB ports via device manager or the optical drive being reconnected may have messed up how windows used to have system reserves as partitions. I only had one visible system reserved drive before, now I have 2 visible and lettered system reserved drives.

I also have a unknown partition at the top of the list, I cannot right click that partition and select any options. The only option in my context menu is Help which brings me a link to Overview of Disk Management

I also had my video quick access as my DVD optical drive when I restarted. I have fixed this issue by changing my quick access links back to their proper folders... Read more

Answer:Unknown Partition - Unknown File System - Cannot edit or remove!

Hello taqiyya6 Welcome to the Ten Forums!

Your problem is actually quite basic. You are going into the Disk Managetool and seeing system reserved partitions mounted and assigned drive letters where they shouldn't be seeing any! The 450mb partition is there to allow changing from the MBR type primary to the GPT type usually seen with server set up or large volumes exceeding 2tb in size such as installing and partitioning a new 2.5tb, 3tb, 4tb, or even one of the latest 5tb drives.

The sight of the System Reserved partition being present on the second Disk 1 500gb drive simply shows that had previously seen a Windows installation on it at some time likely before adding in the large 1tb Disk 0 drive you have the present install on. The most likely to succeed option for taking care of the smaller 500gb if nothing is on it would be a complete wipe and a fresh single partition intended for storage and backup. That would eliminate the first SR but not small second unless using an open source type partiioning utility like GParted while still an option to close up the small gap since it is only a 500gb and not exceeding the 2tb mark.

For cleaning the mess overall however going into the Device Manager and knocking out drivers before a full restart would allow Windows to redetect the drives fresh without seeing the System Reserved and MBR parts mounted again at least on the OS drive being the main concern since the SR part has to remain invisible as a system protected space not mount... Read more

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I have a hard drive with XP Home on it that I need to get data off of after the partition blew up and now shows up as "Unknown" in XP setup and "RAW" in disk manager. The utility partition and recovery partition form the hard drive are still intact but not the OS partition.

I've already run chkdsk /r , fixboot and fixmbr to no avail. The hard drive ran without errors in HDAT2 and the IBM HD utility, no bad sectors or anything. When I ran fixboot it did tell me there was an error and it took 3 tries to write the new boot sector then I tried another chkdsk /r and still nada.

Anyone have a clue how to fix the file system so I can get this data off the hard drive?

Answer:XP NTFS partition blew up and shows as unknown. How to recover the partition?

Try using TestDisk

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I've been trolling the forums here for a while. Lots of great info but now I actually have an issue where I need some assistance.

When I was booting one day last week I got a nasty BSOD when Windows was trying to load. Then on the next reboot Windows 7 said it couldn't load and needed to do the recovery OS option from the Windows 7 repair on the CD. Well, before trying that I did a cold reboot and it got back into the OS fine so I didn't think much of it. Now, I noticed Ghost shows the C: drive status as "Unavailable" and it can't back it up anymore. It does give me an option to restore from one of my old backups. I'm thinking the MBR got hosed up somehow or something like that. But I'm skeptical to run an MBR repair since I have that 100MB partition on my SSD where my OS resides.

Ghost Shot>

This was about a week ago my Windows 7 started acting up right before the big patch Tuesday. I've been running it for over a year now and it's been solid. When I first set it up I installed it on my SSD (Intel 510 120GB) drive. One of the qualms I had with the install is Windows created a separate boot sector on the disk drive where it stored my boot files. This is known the the "system reserved" operating system files 100MB partition. Apparently the way to avoid this is to use a third party partition tool before doing the windows install. That way it will keep the Boot sector files on the same partition which is how I would of liked it for doing resto... Read more

Answer:Windows Recovery disk shows operating system: Unknown on (Unknown)

Note, I just went into my Disk 3 where my SSD resides in DISKPART and did some commands if this helps. It shows both the 100MB and 111GB Partitions on the Intel SSD as "Active".

DISKPART> list partition

Partition ### Type Size Offset
------------- ---------------- ------- -------
* Partition 1 Primary 100 MB 1024 KB
Partition 2 Primary 111 GB 101 MB

DISKPART> detail partition

Partition 1
Type : 07
Hidden: No
Active: Yes
Offset in Bytes: 1048576

Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
* Volume 5 System Rese NTFS Partition 100 MB Healthy System

DISKPART> select partition 2

Partition 2 is now the selected partition.

DISKPART> detail partition

Partition 2
Type : 07
Hidden: No
Active: Yes
Offset in Bytes: 105906176

Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
* Volume 6 C NTFS Partition 111 GB Healthy Boot
Thx again for any/all help!

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I'm not sure if this forum supports Windows installed on a MacBook,
but I'd appreciate any help provided.

Regarding my laptop, it's a MacBook Pro bought around 2011,
witn Windows 7 x64 installed from my friend's disc.
(Sorry I cannot remember exactly what it was)
"Barely alive" condition.
Works fine, but suddenly shuts down at times, alert shows battery not inserted (UNDETACHABLE on this MacBook model), won't run without power adapter connected, immediately shuts down when inserting USB cable into 1 of the 2 USB ports, won't detect internet connection, and so on and so on......

That aside, it worked fine until last week.

I was running Windows Update when I accidentally insert USB cable into the wrong port and "forced shut down" the laptop.

When rebooted, I get a flash of BSOD and auto-restart, which leads to startup repair.

From there, I ran startup repair a few times, each time I get the successful result yet Windows still won't start.

Then I switched to Mac OS to use it for some urgent stuff.
While in Mac OS I did went around and did "repair disk" and stuff to the bootcamp.

Next I tried searching for solutions through my phone and did this and that on command prompt.
chkdsk bootrec etc etc tried all posted solutions to something similar to my case.

The next thing I realized was that I now cannot even choose "Windows" on boot and I got stuck.

Then I asked my neighbor and fortunately could borrow Window... Read more

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I'm not sure if this forum supports Windows installed on a MacBook,
but I'd appreciate any help provided.

Regarding my laptop, it's a MacBook Pro bought around 2011,
witn Windows 7 x64 installed from my friend's disc.
(Sorry I cannot remember exactly what it was)
"Barely alive" condition.
Works fine, but suddenly shuts down at times, alert shows battery not inserted (UNDETACHABLE on this MacBook model), won't run without power adapter connected, immediately shuts down when inserting USB cable into 1 of the 2 USB ports, won't detect internet connection, and so on and so on......

That aside, it worked fine until last week.

I was running Windows Update when I accidentally insert USB cable into the wrong port and "forced shut down" the laptop.

When rebooted, I get a flash of BSOD and auto-restart, which leads to startup repair.

From there, I ran startup repair a few times, each time I get the successful result yet Windows still won't start.

Then I switched to Mac OS to use it for some urgent stuff.
While in Mac OS I did went around and did "repair disk" and stuff to the bootcamp.

Next I tried searching for solutions through my phone and did this and that on command prompt.
chkdsk bootrec etc etc tried all posted solutions to something similar to my case.

The next thing I realized was that I now cannot even choose "Windows" on boot and I got stuck.

Then I asked my neighbor and fortunately could borrow Window... Read more

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I'm running Vista Ultimate 64 on a 500 Gig hard drive with 3 partitions.The problem is I marked one of the partitions,not Drive C, as "active" by mistake.I done a Command Prompt to make it "inactive", but when I started the system up again it wouldn't boot.I used the Vista disk for the recovery process, but I got a message "Operating system unknown on (unknown) local disk" i tried fixing the problem with a command prompt "bootrec/fix boot" ,but nothing happened.When I look at the info in Command Prompt it doesn't show the disk partitions, just Disk 0.Also I can't repair because no Disks are listed to be repaired. If I look at the drive in "My Computer" it is full with a file system marked as "Raw" and it wants me to format the drive.I used "Recover My Files" software and it shows some of the documents that are on the drive, but doesn't show any recovery.I looked at some internet post about the message I got and partition and boot problems like I have, but at this point I don't to try any else to make it worse.I would do a reinstall ,but on one of the drives I have some stuff that wasn't backed up.I never thought about backing it up because it wasn't on the C drive.Any help to solve this problem would be appreciated. ..........Kumpie

Answer:Operating system (unknown) on unknown local disk


Try marking the C partition as active again, using the Windows method in my post here.

Then run Startup Repair from the repair disc. Hopefully it will see your installation.


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Trying to do a clean install and my Windows 7 Home Premium x64 seems to have an aversion to putting the system reserved partion on disk 0. My HP notebook has two identical disk drives. If I boot up the windows install with both drives unallocated and do a custom install, the window where i select the partition for the install if I click new to create a partition on disk 0, it creates one partition on the whole disk. If I do the same for disk 1 it automatically creates two partitions, one for the system reserved. If I try to do that in reverse order by partioning disk 1 first it will still create two partitions on disk 1 (one for the system reserved). It wont partion disk 0 with the system reserved partition.

I tried to install windows with only disk 0 plugged to into the motherboard and that worked when i partitioned the drive during the windows install it created the system partion on disk 0. However once i had windows up in running, I plugged disk 1 (unallocated) back into the mother board and windows woudnt boot up.

I could jsut install windows on disk 1 but ive read that it is better to install it on disk 0.

Answer:Clean install wont partition Disk 0 with system reserved partition

Welcome to the forum.

When you tried to boot with both disks installed, did you go to the BIOS and check that disk 0 was the first in the boot priority?

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I have an external hard disk of Samsung 650GB which got damaged when I was transferring some files to my pc through it. Now when I connect to any PC or Laptop it shows the safely remove icon but there is no letter assigned to it and also doesn't show up in My Computer though it can be seen in Disk Management.

I tried Mini Tool Partition Wizard but when I create a new partition it stops at 90%. I tried wiping out the partition but to no avail.

Is there any solution for it??? Please help.

Answer:Creating A New Partition Or Wiping A Partition On External Hard Disk Stuck

I would check the manufacturers site for a windows utility to low level format it. If you cannot find a utility to do that on manufacturer's site, then try this: to wipe the drive. WARNING!! this will destroy all data on the selected hard drive!! be very careful when selecting a drive to wipe that you don't inadvertently select the wrong disk. After a low level format, unplug the drive, plug back in, windows should detect as a new, virgin, drive and it'll prompt you to format it. Format it and hopefully everything will be fine from here on out for you.

Post back, Hope this helps!!

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Hi,Bought a G510 running w8.1 in May.  After 3 months of untroubled use I started getting all of the above error messages and problems. Restored to factory image. updated bios and updated drivers problems still persisted, all hardware tests were fine. Contacted Lenovo, laptop needed to be shipped to Germany, from UK as it appears there are no facilities in the UK??, to be examined.  The solution... Lenovo replaced the hard disk. Laptop was working fine again until a couple of weeks ago (about 3 months elapsed since original repair!!)  and exactly the same problems have returned.  The joke is I dont even use the laptop seriously as I dont trust it, and it spends 99.9% of its life as an expensive web browser machine. Surely the drive hasn't failed again, are they really that bad, or does the real problem lie somewhere else? Either way I'm totally unimpressed, no doubt having to send the laptop off for another 10 day holiday in Europe. :-( Anybody got any suggestions whats happening here?  Many thanks

Answer:G510 SATA disk on Controller 0 Port unknown, IQRL not less or equal errors plus 100% disk usage

Maybe you can have someone analyze dump files and figure out what's causing this issue.  You can wait for one of the staff to reply or you can ask at Microsoft Answers as well.  

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I have run into a problem that has been causing me quite a bit of headache as of late. A week ago, my WD Elements External Hard Disk is not displaying under hard disk drives, but does display under Devices and Printers. This is what it shows under computer management:

I have tried to initialize the disk using MBR and GPT options but failed receiving I/O Disk Error.

Please help, thank you.

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I have tried the Windows 7 Forum to find an answer to my question.Disk Management, under View, Top, Disk List, shows my 3 disks Type as 'UNKNOWN'.     One is a Seagate 32oGb, the other 2 are WD 1Tbx6Gb/s disks.  Can anyone help?  I have tried all the uptodate drivers I can find.  btw: The Motherboard is an Asus P6X58D-E with the latest BIOS of '0803'.  The PC runs OK.Any/all help appreciated, 

Answer:Hard disk type Unknown in Disk Manager

Hard drives do not require drivers...Right clik each HDD and select back with your findings...Also a brief history on these drives and what they were used for etc.

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When I attempt to reformat my computer, we reach what should be the partitions screen, but instead of listing all the partitions, we get the error message "unknown disk.  there is no disk in the drive".  Is this a problem with the hardware's ability to detect the hard disks?  Or is this a problem with a required driver?Our CISNET computer motherboard model is A8R-MX, and our processor is AMD Athlon 64 processor 3700+.Please help!

Answer:reformatting problem:unknown disk,there is no disk in the drive

Which Os is it? and is it the first time you are formatting it?

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MSDN member.
Primary OS is Windows 8.1 but I need to install a Windows 7 partition for testing. I've followed threads dealing with others also having problems but they've not solved mine.
I've several SATA and one SSD HDD. Windows 8.1 is installed on SSD. I'm trying to install W7 + update 1 from msdn supplied ISO burned to DVD onto an empty 2TB HDD. I've unplugged a couple of USB flash drives. Checked that AHPI (or whatever it's called) for my SATA drives is turned on. Had safe boot off and on. Checked it's MBR partition and not GPT. I've also run through the installation problems thread.
When I get to the pictured screen, I select the empty disk and attempt to set it up but nothing happens when I press Apply and I get the following message when I press the next button. I've never had problems like this before and don't know what else I can try to fix it.

Answer:W7 won't install on partition. Disk drive partition problems

If the 2TB drive is empty (not used) then delete all the partitions until it's just unallocated space, then click Next to start the install. The installer will create the partitions it needs then do the install.

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I have a hard disk that the Disk Management diagram shows 4 partitions left to right:

110mb Healthy (OEM Partition) / 10GB Healthy Active Primary / OS (F) 136.44GB (Healthy

Primary Partition / 2.50 GB (Healthy Primary Partition)

(see screenshot)

I tried reformatting it but the reformat window would only allow the reformat of the OS partition

How do I reformat this disk to use its total 150 GB of space instead of the 136GB of storage it currently allows?

Thanks for your help

Answer:How to reformat a 4 partition disk to create 1 partition for storage

I would suggest you to use Partition Wizard Bootable CD .

For deleting all partitions of disk1 : Help on how to Delete All Partitions with partition manager - Partition Wizard?

For creating a new partition there : Create Partition help of partition software - Partition Wizard.

(all the links contains a video guide , at the bottom of the pages content. )

Alternatively, using disk management :

you can delete all the partitions : Partition or Volume - Delete

And create a new one : Partition or Volume - Create New

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Hi there!

First of all, I am a noob, so don't be too evil

I have installed a new windows 7 on my laptop (in D: ), but there is still the old win 7 (in C: ). I want to delete C: (there are only programs and virus in it ) but it is the system partition. Can I do it? If not, what can I do to delete or at least format C:? I want that 100GB of space in D: and not in C:

(I have no CD reader in this laptop)

Answer:NOOB: Move system partition to a different partition on the SAME disk

I have installed a new windows 7 on my laptop (in D: ), but there is still the old win 7 (in C: ). I want to delete C:

If your intention was to delete/format "C", why did you installed OS on the second partition ?. You could simply format the first partition and use it during the install.

Since there is no data to be saved, i would recommend a clean install as per this guide - Clean Install Windows 7

Basically you boot from the install disk, delete all existing partitions, create two partitions ( one for OS and other for data ) and choose first partition for install. If your OS is retail version, use the key for net based auto activation.

If your Windows is OEM, please follow this guide - Clean Reinstall - Factory OEM Windows 7
It is possible to format the "C" and run "Startp Repair" from install disc to fix the boot but it is always better to install and keep OS on the first partition. A clean install will also help you reclaim the space occupied by the 15 GB partition ( probably OEM recovery ).

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I have a Dell Inspiration 6000 laptop. I want to repartition it having one 20 gig partiton for Windows and 15 gigs for Linux and the rest a FAT32 drive for them to share. Well I run Partition Magic and I can't run any of the Wizards because it says there are unmoveable partition on my drive. There are 3 primary partitions by default, one is a hidden FAT32 partition which I assume is used for system recovery. The other is called CP/M Concurrent DOS, CTOS which I don't know what it is.

So I can resize C and creeate an ext3 partition for Linux, but when I got to use the rest of unallocated space it won't let me create a new partition. Can someone tell me how I can create more partitions. And what is the CP/M Concurrent DOS, CTOS one?


Answer:Partition Magic: Unable to partition disk.

Figured it out. You click on the c drive partition and resize it, setting it to like 30,000 or 40,000 or whatever, leaving the rest unallocated. Then you can create a partition for it in the operations section and label it. Very confusing but it worked for me.

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I tried to download Partition Logic from its website. Since they didn't offer the exe file, I downloaded the ISO image, and burned it using Nero as it was instructed. The CD seemed to have burned well (I can see the different folders and files), however, I can't figure out how to run the program. Could someone help me. Thank you.

As a side note, I am trying to format my hard disk and make a clean reinstallation of Windows XP SP2. However, I have already partitioned my hard disk in 2 halves. I tried to delete one of them using the Computer Management, however, instead of merging it with the system partition, it remains unallocated. Does someone knows how to solve this issue. Thanks again

Answer:Hard disk partition with Partition Logic

Partition Logic runs from the CD. You boot it up. But I wouldn't use it. I have great hopes for such free apps, but I don't think that one is ready for prime-time.

Try the free Paragon partitioner (and make the CD after installation so you can partition from the boot CD, too).

The XP partition will need to be resized by a third-party partitioner.

Partitioning Tools-->


CloneZilla GParted LiveCD (Complete partitioning and drive imaging/restoration tools)
Gparted LiveCD
Parted Magic
Vista Recovery Disk (Shrink, expand, create, delete partitions)
Free Paragon Hard Drive Manager 8.0 Special Edition (Make recovery CD for offline partitioning or defrag.)
XP Recovery Console CD image (Create and delete partitions with diskpart.exe)
Partition Logic
Ranish Partition Manager
Cute Partition Manager


Paragon Partition Manager
Paragon Hard Disk Manager
Terabyte BootIt NG
Acronis Disk Director
V-Com (Avanquest) Partition Commander
EASEUS Partition Manager
7Tools Partition Manager
Spotmau Partition Genius

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I have a customer's computer here that has two hard disks, a 10GB and a 40GB. The 10GB is the boot drive and has been set up with Ontrack Disk Manager (part of Seagate Disk Wizard, both drives are Seagate drives), the 40GB is regular NTFS. The machine originally ran WinME but has been upgraded to XP. The problem is that Disk Manager comes up with an error on startup saying it can't find the operating system. I can't get into the 10GB drive to find out what's happened, it doesn't show up as a readable partition when I boot off a floppy or plug the drive into another machine. Partition Magic 8 reads it as a "Disk Manager" partition. When I boot off the XP setup CD it doesn't see any partitions on the drive. The most I've been able to do is run EasyRecovery over the drive using the RAW partition type (i.e. it doesn't find any files as FAT32 or NTFS), which allows me to extract all the files, but without the filenames or directories. Spinrite seemed to find a bad sector when I did a level 2 recovery, Seatools found no errors on the drive.

Does anyone know how you can copy files off a drive that has been set up with Ontrack Disk Manager? I installed ODM on a workshop computer but it doesn't seem to have any feature that lets me convert the drive to a regular partition format, or extract files from it.

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Has anyone tried to resize a partition of a SATA disk with Acronis using an USB enclosure? I forgot that I tried once awhile ago, and it took an extremely long time. Of course this makes sense, given the limitations of USB.

But I forgot about that previous experience, and found myself in a position where I needed to resize a partition on a drive. My desktop is down at the moment because the raid controller failed and a replacement is on the way from LSI. So I thought I would use my laptop and put the drive in an enclosure, instead of taking 5 minutes to setup a disk to boot into on my desktop which was dumb. (because I have an extra disk with an installation for it...)

Anyway, I forgot about the problem last time I tried over USB, and as soon as I clicked "commit" I noticed the 18 hour estimated completion time. I clicked cancel, hit "yes" to confirm the cancel, and nothing happened. It's about an hour later, and it is still trying to resize the drive, and hitting cancel still does not actually stop the process.
Does anyone know what is going on?

If there is data on the partition that is being resized, will terminating the program via end process in task manager before it is complete corrupt the data on that partition?
So I'm looking to have 2 questions answered:

A.) Does anyone know of a method to get Acronis to cancel the partition resize?

I don't have another 15 hours to wait. I need to leave in an hour, and need to bring my... Read more

Answer:Acronis Disk Director Suite 10 - can't cancel partition resize on USB SATA disk

deuce said:

.. and as soon as I clicked "commit" I noticed the 18 hour estimated completion time. I clicked cancel, hit "yes" to confirm the cancel, and nothing happened.Click to expand...

I'm thinking you should've waited ... the first estimate is always ridiculously long ...
But once Acronis figures out what it has to do ... The time usually drops to something more reasonable.

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"Your Handy Tool for Disk & Partition Management
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Platform: Windows 7/XP/Vista (32 bit)
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"Why Choose Disk Manager Free?
Wondershare Disk Manager Free is a handy free partition manager for all-level users to copy hard disk and manage partitions. With the complete wizards, you will never worry about data loss when you need to copy disk/partition, create partitions, resize partitions, delete partitions and recover partitions. Now use this Free Disk Manager to reasonably allocate disk space and re-structure your hard disk for maximum use.
Main Functions: Create Partition: Create a new partition or re-partition your hard drive for better usage.Resize Partition: Extend a partition to a larger size or reduce a partition without losing data.Copy Partition: Copy a partition as well as all files in it for backup. You can save the copy to another partition or another storage device.Delete Partition: Delete a partition or delete all partitions. You can choose whether to shred data in the partition.Fomat Partition: Prepare for installing OS or re-organizing your hard disk.Recover Partition: Recover lost partitions as well as files in it from misoperation, software/hardware failure, or virus attack.Convert Partition: Convert FAT to NTFS or vice versa.Set Pa... Read more

Answer:Wondershare Disk Manager Free: Tool for Disk & Partition Management

It says Disk Manager Free, but then says Try in one place and Free Trial in another place.
So if anyone does decide to download and try it out do let us know if it freeware!

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Hello, Initially when I re-formatted my computer to get rid of the factory image, I found that there was a hidden partition of 1.37GB which I could not touch, meaning i could not delete. I ignored it at that time and formatted my computer and reinstalled vista business on it using the license i got from lenovo. Now after some days, I was kind of getting concerned as to what exactly was the 1.37Gb partition on my computer. I guess I was getting worried as to why I was not able to reclaim that space for normal use. Today, I tried to reclaim it, by deleting the volume, thinking it should merge into the unallocated space, that I have on my primary hard drive. But it did not. However, what happened was that this space of 1.37GB did start showing up on My Computer, once I formatted it using NTFS. I then checked its properties in My Computer and it had an option of readyboost. I selected the option which says use this disk for readyboost, and immediately in no time, the disk was full with on 68MB remaining as free space. It also has an icon of readyboost in the drive, when I double-click it. This is when I figured that this space could be on a separate physical disk. I did some research and found out that this drive or device or chip, is listed as Disk-1 in disk management and as IMD-0 under Disk Drives in Device Manager. I googled about it, and found that it was related to the turbo memory. Now, I believe that turbo memory would be a separate flash chip, which would be hardwir... Read more

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I am running Windows 10 Pro.

I have an old 1Tb drive that used to be the boot (C) drive and also had partitions for two additional drives.
I since replaced that 1Tb drive with an SSD and another 2Tb second internal drive.

I've inserted the 1Tb in an external USB SATA dock. In Disk Management I was able to delete all the data volumes on the 1Tb, which then formed two unallocated sections, but there are 4 other partitions that I was not able to deleteDiskMgmtScreenShot.docx.

I then tried to convert the drive to a dynamic disk, but got an error saying "The operation is not supported by the object."

See attachment for screen shots.DiskMgmtScreenShot.docx

Is there any way to just reformat the entire drive, or to remove the partitions? I don't see FDisk in Windows 10.

How about putting this drive in the internal bay, and attempt to reformat it with the Windows 7 install disk, and just tell it to remove all partitions?

Answer:Unable to convert 7 partition disk (basic) to dynamic disk

Open Admin command and type:
select disk 6 Note: your doc shows this as disk 6, if different then change it to the correct #

Open disk management and initalize the disk then format.

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I've a full system backup and 139 GBs of free disk space, but Disk Management won't allow me to create a new partition to restore the image because I don't have any unallocated disk space. Is my backup image useless?

Answer:No unallocated disk space in Disk Management and can't create new partition.

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[Apologies if I have posed this in the wrong place; thanks for moving it if necessary!]
Good morning Folks!

I thought this would be simple: 1TB HDD with Two 500GB Partitions E: & Z:. Having available space in E: and needing more in Z: I performed a "Shrink" on E: of 75GB then "Expanded" Z: to the full amount available. I was warned it would change the disk to Dynamic (thus not being able to boot from it; I thought this would not be an issue as it is a secondary data disk). I ended up with 3 visible partitions with 2 named exactly the same and acting as one. e.g. "Properties" on one is identical to the other.
Attachment shows details.
Appreciation to all who read this and those who respond with my next advised move (if any).

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Hi, I have laptop with system (199mb), windows, recovery and tools, so the 4 primary are taken.
I created another partition in unallocated space, and it converted the disk and all partitions dynamic.

If I image the windows partition with macrium, convert the disk back to basic, and restore the image, will it work 100% as if it was imaged on a basic disk, or does the fact it was imaged on a dynamic partition change anything in the image?

Also, can I just move all the folders and files from the system partition to the windows partition, and just run a start-up repair in macrium or paragon, and it will make the windows partition active and bootable?


Answer:restoring an imaged dynamic disk partition to a basic disk?

Convert a Dynamic Disk to a Basic Disk

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[Apologies if I have posed this in the wrong place; thanks for moving it if necessary!]
Good morning Folks!

I thought this would be simple: 1TB HDD with Two 500GB Partitions E: & Z:. Having available space in E: and needing more in Z: I performed a "Shrink" on E: of 75GB then "Expanded" Z: to the full amount available. I was warned it would change the disk to Dynamic (thus not being able to boot from it; I thought this would not be an issue as it is a secondary data disk). I ended up with 3 visible partitions with 2 named exactly the same and acting as one. e.g. "Properties" on one is identical to the other.
Attachment shows details.
Appreciation to all who read this and those who respond with my next advised move (if any).

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Move windows 7 installation from one disk partition to other disk partition
HI all ,

Before going into details of my problem, I am listing down my system setup.

I have 3 HDDs on my pc with following details :-
1. Disk 0 - 500 GB - Windows 7 32-Bit Installation on C: - Partitions ( C - H)
2. Disk 1 - 1 TB - Windows 7 64-Bit Installation on J: - Partitions ( J - N)
Here I want to mention that, my Win 7 64-Bit installed on J: , and my linked documents folders reside in K: under folder K:\MyFolders ( as shown in K_myFolder.jpg)
3. Disk 2 - 1 TB - No OS on any partition - Partitions ( O - T)
As shown in attachment DiskMgmt.jpg

Now my problem is, windows 7 has detected some fault in Disk 1, thus I need to send the Disk 1 for RMA. So for the same I need to move my Windows 7 64-bit OS installation from Disk1 - Partition J: to Disk 2 - Partition O:, and data folder Disk 1 - K:\myFolder to Disk 2 - P:\myFolder.

How can I do with keeping the settings as mentioned above. How does my OS References will be remained for the requirements.

Thanks in Advance.


Answer:Move windows 7 installation from one disk partition to other disk part

We need to see the labels which are obscurred in the Disk Mgmt columns, nor can we see how much space is used on K you want to move to the smaller P.

You want to use Disk Imaging.. I would use free Macrium Reflect which offers more flexibility where to reimage the partitions you choose to image. Macrium - Image your system.

However if you have a WD or Seagate HD in the mix, you can use their premium Acronis imaging app which is best of all, and has a very easy to understand Manual on it's download page on either HD maker's site.

After imaging if the OS fails to start on the new HD, unplug all other HD's, confirm the OS is marked Active, then run Startup Repair - Run 3 Separate Times until it starts and holds the System flag. Then set preferred HD to boot first in BIOS, boot other one using one-time BIOS Boot Menu key.

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Running a freshly done re-install of win 7 64 bit.

I'm working on bringing the newly installed machine up to speed, and want to do it like the old OS that lasted 5 yrs was done.

That is, I broke the main OS disk into 2 pieces... so three total since the OS takes a tiny 200mb partition.

I guessed a good size would be 150 GB for the OS... 5 yrs ago. It turned out to be a bit close by the end of its career and was only 34GB shy of 150 GB.

So this time I thought I'd give it another 40GB making it around 190 GB.

So, cutting to the chase:
Using the OS tools, it appears the disk manager wants to keep around 250+ for the OS. I cannot see why this would be the case.
I have some screen grabs at the end showing the shrink dialog, and snap of the properties of the disk.

And know too that I have:
Tested and De-fragmented this disc, and it has been freshly reformatted too. All not long before starting work to shrink it.
The dialog (see image below) shows (Sz taken direct from the tool. Conversions from : Convert gigabyte to 248006 megabyte - Conversion of Measurement Units )

. . . . . size before shrink: 476838 - 465.66 GB
. . . . Shrinkable amount: 228832 - 223.47 GB
Total size after shrinking: 248006 - 242.12 GB

242 GB seems a bit hefty for the OS partition given the fact that it topped out at less than 150 GB after 5 yrs of use.

I'd really like to pare that down... but a little hesitant to get after it with Partition Wizard or the like.

So, I'm asking if I should h... Read more

Answer:Using win7 Disk manager to shrink disk... leaving partition too big

I'd think only you can decide how much additional space you need, both for application programs you plan to install eventually as well as for any data those programs may manage, not to mention other documents and files you currently have or plan to have in the future.

I myself have three internal hard drives in my "small" machine, divided into partitions C-M. This structure has evolved for many years, and I know exactly the type of data I put on each partition. C is obviously primarily for Windows and programs, along with miscellaneous "data" that's kind of generic. Any other data that is significant in size or numbers (e.g. multi-media audio/video/pictures) go elsewhere, as does important "work related" data. I've never bothered to try and move "\My Documents" off of C, I simply SAVE data to other partitions when given the opportunity.

Anyway, I agree with you that a "minimalist C" in the real world doesn't need to be much larger than probably 75-100GB tops, assuming you have someplace else (like a second partition) to store your REAL (or really large/numerous) DATA files, and assuming you're conscientious about SAVE'ing your data to those other partitions rather than just letting the target location default to say "downloads" or "\My Documents", etc.

Here's my "small machine" setup. Note that I'm only using about 64GB of my C-partition, of which the Windows 7 Pro x64 folder itself is 29G... Read more

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Hi all,
Hope someone can help.

Recently I was running this program to decrypt a ps3 hdd but this required an addition hdd to be formatted with x0xx or something. instead of choosing the other hdd i chose my C: which i was using at that time.

after 3% my laptop shut down then i realised that i done something wrong.

I tried to format my c: instead of the other drive.

I have a files and folders of huge importance in there.

I connected the hdd using a sata-USB cable to my sisters laptop and on the disk management window it shows as...

layout - simple
type - basic
file system - used to show 'RAW' but now blank
status - active (healthy, primary partition) 4
capacity 74.53gb
free space 74.53
%free - 100%
fault tolorence no
overhead - 0

I cannot remember if this was originally a fat32 or ntfs.

When I start my laptop it says 'no operating system found.
I went into recovery console andtriewd fixboot and fixmbr but it still wouldnt load up.
on winxp installation window, it shows this partition as unkown.
I have used several data recovery programs and found some files but they are not in the right order and does not have the proper file names.

is there any way I can go into the hdd and recover the data by folder names.
or can i somehow reinstall windows without formatting and then i can access the files and folder.

Please help me

Answer:unknown partition?? help :( :(

Well, it looks like you formatted the drive for sure. Pull the HDD out and put it on your sisters computer and try running Recuva or GetBack for NTFS to retrieve your lost files (pictures, Music, documents etc) and save them to her computer. Once you have recovered everything you can from that drive, put it back in the computer and install Windows XP.

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Question: partition unknown

I have a problem with one hard drive and one one USB stick.
Last week I could not access the USB stick and it was listed in disk management as "Healthy Partition unknown". Today the same thing happened to two of my hard drives. the first partition on one of them and the entire second hard drive are inaccessible through normal means (like explorer) and show up as "Healthy Partition unknown".
Luckily I got all my data back by using the "Recover my files" utility,
but the drives are otherwise useless.
Incidentally these were FAT32 partitions, but I do have an other drive with the same FAT32 format and is so far not effected.
Do I have virus? or what caused this?
The system is XP SP 2 all security updates.
AVG antivirus, Comodo firewall.
Everything else is working normally.

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when am booting windows does not start and the xp partition has gone to unknown partition, how can i retrieve the file which i have stored on desktop and my documents

Answer:unknown XP partition

Boot pc With WindowXp Bootable and Press R to repair After that select os 1 and type in c:\windows>chkdsk /p /r this command 100% your partion recover and xp boot normaly thanks

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Question: Unknown Partition

ok this is the problem i have winxp and i get the blue screen of death and i try to format the harddrive but when i go to delete the partition i see five partitions all say unknown partition and when i try to delete that it goes back to the blue screen and i dont know what to do anymore really so if anyone knows anything that would be great help and i really dont want to get a new harddrive so if its fixable help would be great

Answer:Unknown Partition

are you going to re-install XP ?
are you trying to delete from within windows ?
Best to boot from XP Install CD .. when you get to the part for where to install .. delete the partitions you don't require then re-install.

Give more info about what you are doing and what you hope to do .. you can see what is happening and what you are trying to do .. we can't .. so be a little bit more explicit ..
Thanks .. we'll be around to help

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Question: Unknown partition?

Im soppose to have 2 different drives, C: and D:\

but when i check the D: on Computer Management, all i see is

Healthy (Unknown Partition)

Is there any way i can access this drive, all my important files are stored in it :|

Answer:Unknown partition?

If you can't access it on My Computer, you can try merging that partition with your C drive.

-Dan The Man

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Question: Partition Unknown

I have a HP Desktop that no longer will complete the windows XP Boot process.
So I have tried to do a windows repair from the CD... Drive c: shows up as UNKNOWN Type.
Any thoughts on repairing it to recover data?


Answer:Partition Unknown

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When the 1st partition is created is it placed on the outer or inner edge of the platters for NTFS?

Answer:disk partitions - physical location of 1st partition on disk

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Hi,I have lenovo z70Now I've graded from windows 7 to windows 8.1, My laptops starts working slowly, so i though of re installing windows 8, so made a bootable disk and formated everything, Now while installing it i s showing an error as "Windows cannot be installed to this disk. The selected disk has an MBR partition" how to rectify it...

Answer:Windows cannot be installed to this disk. The selected disk has an MBR partition

Dear vijay09459
Welcome to Lenovo forums
you can try the steps below

Temporarily disable the EFI Boot Sources setting in the BIOS:
-Restart the computer, and then press F10 to enter the BIOS.
-Navigate to Storage > Boot Order , and then disable the EFI Boot Sources .
-Select File > Save Changes > Exit .
Install the Windows operating system.
Enable the EFI Boot Sources setting in the BIOS:
-Restart the computer, and then press F10 to enter the BIOS.
-Navigate to Storage > Boot Order , and then enable the EFI Boot Sources .
-Select File > Save Changes > Exit .
Also try the steps in the link below if this did not work out

Did someone help you today? Press the star on the left to thank them with a Kudo!If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.Follow @LenovoForums on Twitter!

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A couple of years ago I uploaded Ubuntu and experimented with using it as an operating system for my VAIO laptop. In order to do this I partitioned my hardrive and for a while ran a dual boot system. I didn't take to Ubuntu and decided to stick with Vista, so I deleted it and attempted to delete the temporary partition on my hardrive with no luck.

I have sat on this problem for years, occasionally trying to solve it to no avail. Now my main C drive is nearly full, only 5.59 GB of free space and I need to access this unused partition space and the 9.31 GB of potential it contains. But still I cannot delete this partition, it should be sooo easy, but my system is not operating as text book.

I am in Disk Management, in Computer Management folder.

It is a basic type partition, simple layout that says Healthy(EISA Configuration). But when I right click the mouse over the partition I want to delete, the only icon that pops up says 'Help', it doesn't give me the option to 'delete, shrink or expand volume'

Now I have tried lots of suggestions from the help section, but can't seem to solve why my computer will not allow me to access the necessary options icon to delete this partition.

Can anyone out there help, or has anyone experienced similar challenges?

Answer:Attempting to delete disk partition in disk management

I suggest that you follow this tutorial carefully. partitioning - How do I remove my Ubuntu partition from Windows 7 and reuse the space? - Ask Ubuntu

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Hi to all seven forums.
I bought a new 1tb hard disk, and I connected it to my pc as slave, and when I creating the partition in windows seven disk management and right click to creates new partition, it had four option.
1. simple volume
2. spanned volume
3. stripped volume
4. mirrored volume.
plz tell me quickly which option will I click for creating partition..
I want this partitions..
C: 30gb
and the remaining space is equally divided to 3 partition..
plz hurry guys..
I m waiting and stick on this..

Answer:Need quick help about new hard disk partition on win 7 disk management

Can you post a screen shot of Disk management?

Screenshot tools.
A Preferred Method of Uploading/Posting Screen Shots
How to Use the Snipping Tool in Vista - Vista Forums
Snipping Tool - Windows 7 features - Microsoft Windows
Use Snipping Tool to capture screen shots
Screenshot with Paint
Screenshot and Upload using MWSnap
fscapture free download

Use Snipping Tool to capture screen shots

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I run Windows 7 RC. I have a system partition and a partition with all of my data on it. I tried to run Partition Magic to increase the volume of my C drive. I ignored the warnings that Partition Magic was not compatible with this version of Windows. I got BSOD when I ran it for the first time. When my computer restared, my data partition was gone. When I open the disk management utility my data partition is there but unlabeled. I ran system restore but nothing changed.

Please help me recover this disk. Thank you.

Answer:Disk disappeared from explorer after partition but still in disk management

You should have used the Win7 disk management to resize the partitions, it works nicely

Can you right click the 'data' drive and assign a drive letter?

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My company's computer needs to be patitioned and reformat. The system is still working well. I mean, nothing wrong with anything (weird huh?). Ok the hard disk just need to be 'split'. I mean, make drive C & D on the hard disk. I know how to do that... easy... Then the HD need to be formatted & reinstall windows XP. Ok, easy too..

But the main problem occured before I do anything (partition & format). I have my own bootable CD that I usually use for partitioning & formatting.

Ok, i insert the CD & restart.
I went to BIOS & changed the boot order (1st boot: CD-ROM, 2nd: HDD-0 & 3rd: Floppy). Then restart again.
Ok the bootable CD is excellently loaded.
I typed fdisk, then came the first problem. it says something like 'no fixed disk'. I exit fdisk.
Then I typed format c:, 2nd problem occured. it says something like, 'invalid drive'.
I forgot the error message because the pc is in my office right now. I'm currently at home 'begging for help' So the error message is not accurate. sorry..

I think, if I run the CD, the hard disk will not be loaded (or should I say, hard disk failure). & If I take off the CD & restart again, change the BIOS (1st boot: HDD-0) then windows will load! Weird right?

I don't think my CD is 'corrupted' nor broken because I tried to run the CD from another PC. Yes, I can access the C drive from that PC.

Does anyone have any idea of the ... Read more

Answer:Can't format hard-disk nor do partition when using boot disk. Hard-disk failure

It sounds like it might be the bootable CD you've created is not picking up the HDD's/partitions.
To eliminate this as a posibility travel to bootdisk and grab the WinME bootdisk and boot from there. If it picks up the HDD you can FDISK and Format from there.
The other option is to boot using the XP CD and let it handle the formatting/partitioning duties...


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HiThe partitions that came with the system include one unknown partitionNamely the 3rd one. It's around 3GB.Does anyone know what it is? Thanks.

Answer:unknown partition question

HiThe partitions that came with the system include one unknown partitionNamely the 3rd one. It's around 3GB.Does anyone know what it is? Thanks.I would have to say if you don't know call tech support. If this is a computer from like DELL, Acer, and ETC then it might be proprietary program files but I would not know for sure. I however would be concerned if someone game you this computer with spyware and other such nasty's on there but I highly doubt it!! Who makes this computer and we can discuss this further!!

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When I use Window's Disk Management tool I notice that my 80Gig HD has two partitions. One partition is listed as 31MB FAT Healthy (EISA Configuration) and the second partition is listed as ( C: ) 74.52 GB NTFS Healthy (System).
I never noticed this before and checked two other PC's I have and none of them show a FAT and NTFS partition together.
My system operates fine but I was wondering if someone could explain this to me. Thanks in advance.

My specs:
Dell Dimension 8200 w/Windows XP Home SP2
P4 2.53 w/512meg ram
80 GB HD
Geforce 5200
NEC DVD Burner

Answer:Unknown partition on Drive C:

Thats the Dell partition that stores some Dell utilities and diagnostics, and its best left untouched.

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I have a laptop (packard bell easynote) that I use every now and then just to play games. When I bought it it came with windows vista already installed and frankly I'm getting tired of it and so want to downgrade to XP.

I inserted the windows xp installation cd in the dvd/cd drive and restarted get the issue at hand here -> I'm right now in windows xp proffessional setup (in the middle of installing xp) I have deleted the partition where vista was installed and am about to make a new one to install xp in but there is another partition there

F: Partition1 (_OEMBP) [NTFS] 8197 MB ( 2196 MB free)

I'm not sure what it's there for so this is basically why I'm here. Should I or should I not delete this partition? It's taking quite a bit of space so that's why I ask. I have looked around on the net for a description but nothing so far so why I decided to ask my own question.

Answer:[SOLVED] Unknown partition

Hello Alerno

Welcome to TSF

This partition is your built in OEM partition, this is where your computers recovery software is kept. Now because its OEM this means that it came pre-installed with vista and alot of free and trial software, so if just say, there was something wrong with your PC,you could boot into the recovery console and restore back to manufacturers settings using this partion

It is always good to keep this partition as you can use it to upgrade to vista again if you change your mind,



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I do stupid things like this on a Monthly bases and I usually just reinstall Windows 7, however I broke the disk and now don't have one, plus I have important Files on there that I NEED.

Now to What Caused the Problem:
Today while installing a Game, I didn't have enough space to install it on Windows 7, and I had 100 GB for Ubuntu (Didn't think I would ever use 100 GB for Windows, but I did), So I deleted the Ubuntu Partition and added it to the Windows Partition. After Installing the Game I decided I would restart my Computer, and when it was starting I got the "No Such Partition" error.
( So I used Ubuntu Live when it wouldn't work to find out the prob.)

So then I figured I would Reinstall Ubuntu on a 20gig Partition. So I started the Install, and it had an Error (I'm assuming it was because the disk was dirty). I figured I would clean the disk and try again, so Did that, went to install, however the 20 Gigs I was going to have it use was a Unknown Partition. Not wanting to not use it, I figured I would find another way to fix Windows.

So I borrowed a Windows 7 Disk from a Friend to use it to Repair Mine, but it was for the Wrong Version so it wouldn't fix it. However I found a way around that and Used the Repair Option (I figured the Problem should be an easy fix), and So when I finished I restarted my Computer, Now I get "Requiered Device is Inaccessible", Status 0XC0000225.

After that I said Screw it and Went back to installing Ubuntu and for som... Read more

Answer:Windows is now a Unknown Partition.

Bit confused, which OS was the primary one, was this a dual boot ?

What did you use to re-allocate the 100G?

Either way I'd download a copy of the Ultimate Boot CD V5 (obviously on another machine) and get it burnt to disk, there are tools on this disk for accessing pretty well any kind of hard drive. You should at least be able to check the partitioning (DO NOT try to fix unless you are absolutely certain you know what you are doing), there is an application on there called Parted Magic that should help you get your files back at least (Ultimate Boot CD - Download the UBCD)

Alternatively buy another hard drive, get yourself up and running on that, preferably with a Windows OS and install the 'failed' drive and see if you can access it, this I think will be your easiest initial option.

The most important is to stop messing about with the failed 'OS' disk, number one priority is to get your files back, the more you mess around on it the less chance you have.

Either way you should consider the failed 'OS' disk off limits for rebuilding or rebooting with until you get your files off.

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Hi all,

It happened all at once, I restarted my asus K52E with windows 7 x64 and a black page with a blinking underscore was shown, indicating a damaged mbr.

The recovery partition is not accessible. I tried all the Win7 mbr recovery (with the command prompt of the win7 installation disk) but didn't work
Moreover, I'm afraid of my data partition, because this one is the only not readable by the ubuntu live cd. I post here my HD partitions:
ImageShack? - Online Photo and Video Hosting

I explain:
dev/sda1 is the asus recovery partition (cannot access it)
dev/sda2 (C:\), is the ntfs win7 installation partition
dev/sda5, is the ntfs data partition (I WANT TO RECOVER)

please, how can I access the sda5 partition or boot my pc without hurting the files in the data partition ?
Do you know any bootable SW?

thank you,


Answer:MBR damaged, partition unknown

Follow these steps for Troubleshooting Windows 7 Failure to Boot - Windows 7 Forums

Did you have GRUB bootloader on the HD? This can corrupt Win7 beyond repair.

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Hi I was trying to defragment my HDD's when I noticed new unknown partition.Since I can't access it from explorer could you tell me how to check it?Thanks in advance.

Answer:unknown partition appeared!!!

Perhaps you've been infected, does all seem normal?

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I have a 20GB hard drive with windows 98 se loaded. It also has Go Back loaded. So every time I boot the computer, Go back starts first, then windows kicks in. Well, recently Go back seems to be locking up, so windows can't start. I restarted the computer with a windows 98 startup disk to get to a "C:" prompt. The disk indicated that there was no hard drive. I ran FDISK to see. FDISK indicated that there was a hard drive but it had an unknown partition type. I NEED the data on this drive! Is there anyway I can get to the data? Can I change the partition type to fat32 without losing the data? Is there a utility I can use?


Answer:Unknown Partition Type

It's been a while since I've used 98 (SE?)

Boot with the floppy and go to your a: drive, then type in dir and press enter.

Somewhere in there are scandisk and utilities that may help.

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i needed more hard disk space, so i cloned a 10 gig hard drive to a 20 gig hard drive. i booted up with my 250 gig as slave and my 20 gig as master. it booted up fine, and i had 10 gigs free space. the only problem is, my 250 gig (D) wasn't there. so i went into administrative tools

after going into the disk manager i saw that the western digital 250 was there, but aparently it was an "unknown partition (healthy)", which is weird cuz BIOS recognizes it and partition commander sees it as NTFS and can access the files, and i scanned it with SMART and partition manager and it's apparently fine, but windows doesn't recognize it right

i think im gona buy a hard drive enclosure and see if windows sees it fine through that. will that work, or are there alternatives, or what??


i got the hard drive enclosure and windows does pretty much the same thing. it works with different hard drives too.

Answer:unknown partition on xp after clone

Partition Magic...

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Hi, I recently bought a Lenovo G450 - 2949CGU, with 320GB hard disk. When I received the laptop I say complete 320GB is of one drive, I need to partition harddisk. Please help me out in doing that. Thanks in Advance,Nagesh.

Answer:How to partition the hard disk without formatting the disk

after this process,one key recover button ( novo button ) won't work.

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i have a C: drive containing operating system,having memory 220.27GB.148.82 GB of this memory is free(not in use).
i tried for partition of my disk.i entersd as an administrater.then i go to the computer management where i click on the disk management.
there i found disk 0 containing four partitions :
(1)118MB healthy(EISA configuration)
(2)RECOVERY (D:) 10.00GB NTFS Healthy(primary partition)
(3)OS (C:) 220.27GB NTFS Healthy(system,boot,active,primary partition)
(4)2.50GB Healthy (primary partition)
now i right click on the OS(C:) and choose shrink shows available size of shrink space 37807 in i enter 25600 amount of space to shrink in MB.
now it shows a unallocated partition of 25 GB space.
now i right click on this unallocated partition and click on the New Simple a new simple volume wizard is opened..i click on the next..then using the maximum simple volume 25599 MB again click on the by assigning the drive letter again click on the i choose FORMATE THIS VOLUME with settings as:
1. file system NTFS
2. allocation unit size DEFAULT
3. volume lable NEW
and then i click on the next..finally i click on finish for completing the new simple volume wizard.
you can not create a new volume in this allocated space because the disk already contain the maximum number of partitions.
what should i have to do to create further partitions...can i delete existing partitions.if yes then which part... Read more

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Of course, I am on w8. I have a 1 TB single hdd on my system, with
C 100 GB w8 boot,
D 100 GB w7 boot,
E 100 GB having all my info and data.
F remaining 600+ GB empty.

All are primary partitions.

I want only my E partition data to be backed up or mirrored or cloned or synced or imaged or copied (don't know the correct term) to a part of F so that whenever I make any changes to anything in E, that is automatically always reflected to that back up of E in F.

If automatic syncing is not possible, it will be ok if I have to run that software daily once or schedule it to get it automatically at a fix time of the day.

I have tried w8 imaging or backup but they do this in some cryptic method so that I am not able to figure out how to restore any particular file when I needed it. I need just an exact replica of my E folder-file structure to be made to a part of F.

I don't want C (w8) or D (w7) to be touched or changed or backed up or anything at all to be done to them.

Please suggest any free software or something built into w8 to achieve the same.


Answer:software for PARTITION (not disk) mirroring to same disk

Macruim Reflect Free > Macrium Reflect Free

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Of course, I am on w8. I have a 1 TB single hdd on my system, with
C 100 GB w8 boot,
D 100 GB w7 boot,
E 100 GB having all my info and data.
F remaining 600+ GB empty.

All are primary partitions.

I want only my E partition data to be backed up or mirrored or cloned or synced or imaged or copied (don't know the correct term) to a part of F so that whenever I make any changes to anything in E, that is automatically always reflected to that back up of E in F.

If automatic syncing is not possible, it will be ok if I have to run that software daily once or schedule it to get it automatically at a fix time of the day.

I have tried w8 imaging or backup but they do this in some cryptic method so that I am not able to figure out how to restore any particular file when I needed it. I need just an exact replica of my E folder-file structure to be made to a part of F.

I don't want C (w8) or D (w7) to be touched or changed or backed up or anything at all to be done to them.

Please suggest any free software or something built into w8 to achieve the same.


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I am using OS xp pro sp1. My HDD 80GB(HITACHI,PATA),1.8GHz,256RD RAM,MV85010A M'Bord.Now i want to setup sp2. When i boot with sp2 CD,after license agreement it shows 6 HDD partitions(and drive namec:,d..) thats now i am using. But problem is it don't shows its format type(says unknown).

I am using NTFS(3.1) partition.Continue with C: format(in NTFS/FAT32) it says HDD may be damage(last to complite format)...... and so on.Again restart and boot, delete that partition(RAW), creat FAT32 same problems seems.

what can i do.....


Answer:DISP:Partition Unknown Format

May I ask... what it is that you are trying to do with an 80GB HDD and 6 partitions? Or, is it Windows that is setting up these partitions? Windows does set up at least one partition for the NT kernel. Are you sure that they are all, in fact, HDD's and not CD/DVD/USB, etc... ?

Thanks. . .

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Hi friends,

One of my Pc is not booting only the logo is runing for a long time. When I check the Partition C drive Partition was unknown and totaly that drive shwing as a Free space... how to sortout this problem without re-installing.

If any body face the same probelm and got throgh this.... please help me also to get out from this problem.. I can't re- install it......

thks... waiting for your prompt reply...


Answer:Solved: Partition C became as Unknown. Now it is not booting

Which tool did you use that siad C is unknown

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After upgrading from 98 to xp, my old D: drive now has this delightful name. This was full of important things, photos, documents, and all my MP3's, in all 18.6 gigs of stuff. Is there any way that anyone possibly knows of that can let me access the drive to get this stuff? All of the other drives transfered over fine.

Answer:Healthy (Unknown Partition) in Windows XP

so your saying you can't even access that d: partition? is it at least visible in "my computer"?

note: how many partitions do you have and how many hd's do you have?

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Hi,I wanted to either delete my previous topic or edit the Topic Title but I couldn't find an option to do so.I've discovered as stated in my prior topic that the D partition, which is the HP_Recovery portion of the hard drive, was missing.HP formatted my hard drive into two partitions or volumes. One volume is the HP Pavilion (C:) The file system is NTFS and its status shows as healthy (System). The other part of the volume is HP_Recovery. My HP_Recovery used to be assigned to the (D:). The file system is FAT32 and its status shows as healthy (Partition Unknown).I found this info in the Computer Management section under Disk Management. When I right click on the HP_Recovery volume it gives the following options: Open, Explore, Mark Partition as Active, Change Drive Letters and Paths..., Format, Delete Partition, Properties and Help.The only option available is the Delete option.I'm thinking I somehow need to remap the HP_Recovery to drive (D:) but I don't know how to do this and since the Change Drive Letters and Paths doesn't work so I can see where it's supposed to go, I'm a little lost.Is there someone available that has Windows XP Home, installed on an HP and is familiar with fixing the mapping path to a drive or restoring the path? LOLI have an:HP Pavilion 754N DesktopWindows XP Homeversion 2002Service Pak 2Please let me know what else is needed if anything.Thanks,childeFor Admin...perhaps you can delete my previous topic since I think ... Read more

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Dear all,I am running Windows 7 home premium. Sorry for the essay, but I'd like to fully describe my problem!I believe I have a rootkit issue. It came from a downloaded video which had a corrupted time-base, and once a certain point in the episode was reached, my PC crashed and rebooted. Initially it started as before, but I very quickly started to receive the typical "your computer is infected with malware - buy our software", or "your hard-drive is corrupted!" scare-type messages. Also desktop icons were lost, and my start bar was changed in a few ways.I deleted the infected video, ran Rkill, malwarebytes and then unhide. I typically have 2-3 processes killed by Rkill - almost always the following two: * C:\Windows\DAODx.exe (PID: 2220) [WD-HEUR] * C:\Windows\system32\lxdncoms.exe (PID: 3556) [WD-HEUR] (I would like to add that I do not have a lexmark printer, have any printing software installed, or has this PC ever been connected to any printer!)The computer was (relatively) stable, the icons were recovered and I am able to open software (.exe). However, the start bar was left before, for example icons on the bar are listed rather than stacked, and the system tray does not auto-hide. I don't know if these are options which I can replace, but so far I can't find them.In order to try to return to normal, I tried to run windows' System Restore, to a restore point before I downloaded the offending it... Read more

Answer:Unknown rootkit / partition issue

Greetings and Welcome to The Forums!!My name is Gringo and I'll be glad to help you with your malware problems.I have put together somethings for you to keep in mind while I am helping you to make things go easier and faster for both of usPlease do not run any tools unless instructed to do so.
We ask you to run different tools in a specific order to ensure the malware is completely removed from your machine, and running any additional tools may detect false positives, interfere with our tools, or cause unforeseen damage or system instability.Please do not attach logs or use code boxes, just copy and paste the text.
Due to the high volume of logs we receive it helps to receive everything in the same format, and code boxes make the logs very difficult to read. Also, attachments require us to download and open the reports when it is easier to just read the reports in your post.Please read every post completely before doing anything.
Pay special attention to the NOTE: lines, these entries identify an individual issue or important step in the cleanup process.Please provide feedback about your experience as we go.
A short statement describing how the computer is working helps us understand where to go next, for example: I am still getting redirected, the computer is running normally, etc. Please do not describe the computer as "the same", this requires the extra step of looking back at your previous post.NOTE: At the top o... Read more

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Hi all,

I had a virus so I reformatted the partition that had my OS (XP Home). I left the other partitions intact, but I realized after I reformatted that 2 of them were logical (1 xp, 1 ubuntu). I reformatted with XP Pro and now I can?t access the xp partition and the option to boot into ubuntu is gone. I just read that XP pro and home formats aren?t compatible (, but I don?t think that?s my problem (yet) since I don?t have the ?Foreign Status? in disk management.

I?m guessing I screwed up by overwriting the MBR on that first logical drive? Disk management shows ?Unknown Healthy Partition? for the 2 partitions in question. I?ve heard about dskprobe.exe, but can?t find any resources on how to use it? I have read that you can really screw things up though. Anyone know of any guides or other software I could use to access those partitions?


Answer:Trying to recover Unknown Healthy Partition

How about...a screen shot from Disk that we can literally see what you have?

Sometimes...a picture is actually worth a thousand words, IMO .


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Using that Windows Operating system known as Windows XP and with the Service Pack 1 installed...2 x 120 GB Hard Drives...Partitioned like this...Disk 0 - 97.65GB C: Windows XP | 14.13 GB D: GamesDisk 1 - 20.51GB (no drive letter assigned also an unknown partiton) Drive Image | 20.51GB F: Backup | 64.47GB (Unknown Partition) | 7.27GB E: SPEEDOSPartitions C: | Drive Image | 64.47GB (Unknown Partition) | 7.27GB E: SPEEDOS are Primary patitions.D: and F: are Logical drives...Now in Windows Explorer only partitions C: D: E: and F: are shown. The partition "Drive image" (20.51GB) is not shown. In diskmgmt.msc this partition is shown as "Unknown Partition" It has no drive letter assigned and the only option from a right click is "Delete" :-( It is this partiton that i need as it contains all of my imgaes.The above partition became Unknown after i installed SPEEDOS.The 64.47GB (Unknown Partition) is simply unformatted.Any ideas of how to go about getting my partiton known again?(hope it makes sense)

Answer:"Unknown Partition" after SPEEDOS Installation

boot from a partition magic boot disc and run a check on the partition maybe.should also let you unhide it if its been hidden.

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A friend of mine, who is virtually computer illiterate has bought a new laptop, but I have noticed that the hard drive is partitioned. He doesn't even know what it means, and insists it has not been touched by anyone since he bought it.It is split into C: and D: drives with virtually zero contents in drive D:With such a huge waste of space (almost 50%), can the partition be removed, and what little contents there is, moved into the C: drive without any problems, and would its performance be improved.

Answer:unknown partition on Sony Viaio

It is probably a Restore Partition - I don't think it should be removed.

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I have a slight problem, at my place of work i started making images of machines and throwing them on a FAT32 Partition, and then removing the drive letter so no one can tamper with it. but recently i've noticed the partitions are going from "Healthy" to "Healthy (Unknown)", then the partition is unaccessable, i can't assign it a drive letter. can someone help me and let me know whats causing this?


Answer:The great unknown partition god hates me


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I have tried to resize my partition on my Hard Drive using Partition Magic 8 and it now wont boot. The partition is there but windows XP will not repair the partition as it says it is an unknown partition

We have tried fixmbr and fixboot these did not work. When we have run setup the option to repair Win XP is not present only the option for formatting or repartitioning the drive.

As my data is stored on this drive I do not want to do this, is there any way (anything at all!!) of recovering from this situation or retrieving my files?

Any help would be much appreciated?

Answer:HELP!!! Unknown Partition, Computer DEAD!!

What exactly did you do with Partition Magic?

And let me did something as drastic as this with no backups ???!!!

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Let it be known that I have done this before for many years on many different computers, and never had this happen before.

so here's how it went. Bought it two days ago, PC came as is with OS loaded with software that I didn't need or want. Decided to re-format, now I get a butt-load of errors during install. (80+ at most, and never the same).

Formatted NTFS on the two HDD's I have, rebooted, Primary Unknown, Secondary NTFS, booted recovery console and ran FIXMBR and DISKPART and both said NTFS. Booted back into XP DOS setup, primary unknown, secondary NTFS.

Tried install on secondary MBR, same 80+ errors and that's when I had to head to work.

If anyone has any ideas, please reply, will check in tomorrow.

it's not the HD's, I just bought one of them and the other was booting XP before all this. And I don't think it's the board, because it would not have booted XP in the first place

* Specs

Dragon Ultra SY-P4S
250GB(x2) IDE HDD (Single Partitions)
Pentium 4 HT 2.8Ghz

Answer:Unknown Partition during preliminary XP installation

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I was perusing Disk Management and an unkown, 3.5 GB, FAT32 partion was listed. Partition Magic showed a name: CP/M, Concurrent DOS, CTOS. What the H*** is this? Can I delete it?

Answer:Solved: Unknown partition found on C: drive

Its probably a recovery partition that you do not want to delete. I'm guess this is a big brand name computer.

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The partitions on my T400s lost with unknown reason. The virus was suspected for the demo version of Norton antivirus tool were due. I have to recovery my system to factory setting. But to my surprise, the laptop can not be booted any more. I don't know why. Is there anyone tell me how to deal with it. Thank you very much. 

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One of the disk partition is not accessible. when I check in disk management it shows Healthy Unknown partition. How to retreive my data?

Answer:healthy unknown partition, Unable to access

... it may be a recovery partition please post here your pc make and model number..... Posting is provided "AS IS" with no warranties

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DDS (Ver_09-03-16.01) - NTFSx86
Run by Lee at 17:30:58.59 on 27/03/2009
Internet Explorer: 7.0.5730.13 BrowserJavaVersion: 1.6.0_12
Microsoft Windows XP Professional 5.1.2600.3.1252.44.1033.18.2038.1240 [GMT 0:00]

============== Running Processes ===============

C:\WINDOWS\system32\svchost -k DcomLaunch
C:\WINDOWS\System32\svchost.exe -k netsvcs
C:\WINDOWS\system32\svchost.exe -k WudfServiceGroup
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\WINDOWS\system32\svchost.exe -k hpdevmgmt
C:\Program Files\Java\jre6\bin\jqs.exe
C:\Program Files\Kontiki\KService.exe
C:\Program Files\Common Files\Motive\McciCMService.exe
C:\WINDOWS\System32\svchost.exe -k HPZ12
C:\WINDOWS\System32\svchost.exe -k HPZ12
C:\WINDOWS\system32\svchost.exe -k imgsvc
C:\Program Files\Intel\Modem Event Monitor\IntelMEM.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
C:\Program Files\Nokia\Nokia PC Suite 6\LaunchApplication... Read more

Answer:CPU Usage always 100%, All security features disabled and unknown partition

An update,

I detirmined that I had rootkit on my machine and I got it cleaned. Once I got that cleaned some of my security features came back, my antivrus being one of them!

I ran my antivirus and it detected over 3000 infected files with a Win32 virus, I then deleted and disinfected these files. I think this virus infected everything it could!

However, I think i may have deleted some files that I shouldn't have as my all my network adapters are now showing a yellow ! in device manager and have error code 39. This has disabled my connection to the internet! There are also other applications such as chkdsk that can no longer be found.

I have recovered some of the files using the antivirus backup, but I do not know the locations of which ones I need to restore the drivers and chkdsk etc, with over 3000 possibilities where should I concentrate my efforts? If I uninstall the drivers will they reinstall themselves on restart?

I'm getting there slowly, any advice would be much appreciated.



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My pc info -

AMD Athlon(tm) 5150 APU with Radeon(tm) R3

Motherboard Gigabyte AM1M-S2H
Northbridge AMD K16 IMC rev. 00
Southbridge AMD Kabini FCH rev. 7.2
Graphic Interface PCI-Express
Memory Type DDR3
Memory Size 4 GBytes

Windows Version Microsoft Windows 7 (6.1) Professional 64-bit Service Pack 1 (Build 7601)

vendor American Megatrends Inc.
version F2
date 06/20/2014


I have windows 7 installed on c drive.

I would like to dual boot with winxp.

I slipstreamed with AHCI driver.

When the windows xp installation menu loads to partition choosing page.

It shows my whole HDD as one partition.

The partition is like - Partition1 Unknown.

WinXP is not able to read the hard drive partition.

How can I fix this ?

Thanks and Regards

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Today, my notebook crashed (BSoD) while playing an online game - Team Fortress 2. It happened a few times before and, with a little research, found that other users with my video card had the same problem, so I thought nothing of it. After the most recent crash, on reboot, I get the message that "NTFS.sys is missing or corrupt," and I can't access Windows at all. I can get into BIOS fine.

I tried using the Recovery Console to copy NTFS.sys to my Windows\System32\Drivers folder, but Recovery Console isn't recognizing any files or folders on my C: drive. When I enter the DIR command, I get the message "An error occurred during directory enumeration." If I access the D: drive, my extra partition shows up just fine, and I can access all the files I've stored on there.

When I boot with my Windows CD and look at the partition information, I see the following:

-: Partition1 (EISA Utilities) 4997 MB ( 355 MB free )
C: Partition2 [Unknown] 54486 MB ( 54486 MB free )
D: Partition3 (Storage) [NTFS] 54988 MB ( 1141 MB free )

Although the count and free space for drive D: is accurate, drive C: isn't even close. The total is correct, but the actual free space is around 8-10 GB.

Here's my setup:

Acer Aspire 5050
AMD Turion64 x2 (1600 MHz)
ATI Radeon Xpress 1100
Windows XP Media Center Edition
All latest drivers, Windows updates, etc.

IDE1 Model Name: WDC WD1200UE-22KVT0
System BIOS Version: v1.3103
VGA BIOS ... Read more

Answer:NTFS.sys Missing/Corrupt, Inaccessible C: Drive, Unknown Partition

Just restarted it again, this time got "l_intl.nls" error instead of "ntfs.sys". Same error message, same results.

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A while back, a friend of mine partitioned my hard drive and added in a virtual machine for Windows Vista, which was 100 GB in size. This was fine at the time, however now my Windows 8 seems to be randomly shrinking. Over the past few weeks I've lost about 100 GB and I can't understand why. I'm still actively investigating, but I'm now down to 39 GB free of over 400 and to tide me over until I can find out what's happened (and why) I want to remove 50 Gb of my Windows Vista and add it to my Windows 8.

This sounds like a really easy thing to do, but... the problem is that they are on two completely separate hard disks. Disk 1 contains Vista and Disk 0 contains the rest. I do have another couple of questions about removing certain unnecessary partitions on Disk 0, but I'll wait until I get this solved first.

To start with, I shrunk my Vista down by 50 GB, and then I attempted to simply move it across to the C drive. But it wasn't until then I realised that that it wasn't going to be as easy as just merging partitions or even just 'extending' my C drive.

I have also downloaded this tool which has helped me understand slightly more what's going wrong, but I'm still struggling to understand how it can be done. I've searched and have been unable to find any kind of answer on this; people either seem to give up or it isn't related to my issue. I'm not sure how well I've explained this, so I'll also attach a screenshot of the Windows partition manager so you can see what exa... Read more

Answer:Moving Partition from 'Disk 1' to 'Disk 0'

Of course you cannot add partitions from one disk to another. A 500 GB hard disk is a 500 GB hard disk whatever you do, it will not become a 550 GB hard disk by adding 50 GB from another disk. You don't get a three liter Coke bottle by adding a one liter bottle to your existing two liter bottle. It's impossible.

I don't see any issue here; use the free space on disk 1 as storage space for your Windows 8. Simply create a new partition using all unused space on disk 1 and store your files there. You can create totally normal folders there and for instance add those folders to your existing Windows 8 libraries.


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Question: Unknown Disk

Hey guys -

Trying to install ANY operating system onto a laptop (tried XP home & pro, & Vista) and am getting an error...

Unknown Disk
(There is no disk in this drive.)
Unknown Disk
(There is no disk in this drive.)
Unknown Disk
(There is no disk in this drive.)
Unknown Disk
(There is no disk in this drive.)

Is there a specific problem that causes this? Related to drivers maybe?

Answer:Unknown Disk

Bad hard drive, controller, etc.

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hello everyone,

ok so I have a vaio vgc-rb64g desktop (giving to me by a friend) and im trying to get windows xp installed on this thing. At 1st the original hard drive came up as unknown disk when i tried to install it. So i downloaded windows 7 beta and is using that on the original hard drive. Now my brother's computer mother board had crashed and i took his hard drive and put it in the vaio. I wanted to do a clean install of windows xp on that hard drive but its coming up as unknown disk as well. I tried searching far and wide but was unable to find what i was looking for i do not know what the problem is. I also tried taking the original hard drive out and using my brothers but no luck.

Answer:unknown Disk Help plz

Get the OEM setup/diagnostic disk from the hard drive manufacterer and run the diagnostics. Also, check your cables.

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I believe that my pc is clean, it's just that unknown mbr code thing is bothering me not sure if that is normal but i'll let you guys check, Here r the logs:

Additional scan result of Farbar Recovery Scan Tool (x64) Version: 30-11-2016
Ran by DuhBoy (01-12-2016 13:09:23)
Running from C:\Users\DuhBoy\Downloads
Windows 10 Pro Version 1607 (X64) (2016-08-09 15:54:39)
Boot Mode: Normal
==================== Accounts: =============================

Administrator (S-1-5-21-2590114280-3335225030-2770196223-500 - Administrator - Disabled)
DefaultAccount (S-1-5-21-2590114280-3335225030-2770196223-503 - Limited - Disabled)
defaultuser0 (S-1-5-21-2590114280-3335225030-2770196223-1000 - Limited - Disabled) => C:\Users\defaultuser0
DuhBoy (S-1-5-21-2590114280-3335225030-2770196223-1001 - Administrator - Enabled) => C:\Users\DuhBoy
Guest (S-1-5-21-2590114280-3335225030-2770196223-501 - Limited - Disabled)

==================== Security Center ========================

(If an entry is included in the fixlist, it will be removed.)

AV: Windows Defender (Disabled - Up to date) {D68DDC3A-831F-4fae-9E44-DA132C1ACF46}
AS: Windows Defender (Disabled - Up to date) {D68DDC3A-831F-4fae-9E44-DA132C1ACF46}

==================== Installed Programs ======================

(Only the adware programs with "Hidden" flag could be added to the fixlist to unhide them. The adware programs should be uninstalled manually.)

Ali... Read more

Answer:Disk 1 Unknown mbr code

Hey TwiX and welcome

I'll tag @Malnutrition and @DonnaB so one of them can get you underway We have to complete any malware treatment before we can start hardware/software diagnostics

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Help! This unknown "Local Disk Q" just showed up this morning, and my regular external drive was gone. I reconnected my external to another port, and that went fine, but this locall disk q remains, and can not be accessed, changed, removed, etc. I scanned for virus's, and all seems ok. How can I remove this, and where did it come from?

Answer:unknown local disk Q

Does it show up in Disk management?

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Hi Admin,

I'm also facing the same like the rest of em with My WD 1TB external HDD, whenever I connect it, the computer recognizes it's being plugged in, however it doesn't appear in My Computer. When I go to Disk Management it comes up as "Disk 1, Unknown, Not Initialized".

I tried with the Partition Wizard mentioned earlier in the post, but seems it takes lot of time. Data inside the drive doesn't matter for me. If i get it formatted that would help.. kindly advise on how to proceed further.

Also am not seeing the option, New Simple Volume when selected the Unallocated drive.

If Initialize disk is to be done, what partition type has to be selected "MBR or GPT"

Please Help !! Thank you !!

Answer:WD Passport HD 1 TB disk 1 is unknown

Welcome onboard.

( I am not Admin but still usurp their address to address this query)

Initialise it as an MBR disk. Only more than 2TB drives need to be GPT disks.

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I turned on my computer the other day and it decided to run a checkdisk. No problems, everything was fine. HOWEVER, the next time I rebooted, it said that there was a computer software problem and the exact error was "load dlls for kernel", please contact your support person for assistance. Now, every time I boot up, I get this error. It doesn't matter how I boot up, (safe mode, last known good config, normal) I get this error. I saw on the web that the fix action was to run the XP install CD and do a repair, so I tried that; BUT...when I run the CD, it says, "unknown disk" where it normally lists my partitions and it won't let me continue past there. If anyone can please help me, it would be HUGELY appreciated as all of my children's photos since birth are on this hard drive!!! PLEASE HELP!!!

Answer:Please Help - Hard Disk Unknown

For starters, I'd suggest booting (typically you hold down the Delete key during power up) into your CMOS BIOS and make sure the BIOS sees your drives. Could be somehow the BIOS got corrupted and needs to be re-config'd.

Hope this helps get you going.

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When optimizing my drives My options select drives to optimize included:  All,  C:, Recovery, and two unknown drives one
labeled    \\?\volume{76888052-0d72-4a91-8a5b-8eb5a12f1512}\  the second unknown was another drive with similar ? volume identification

I've performed searches trying to identify with success. 
Devices and Drives include:
C:, D: recovery, E DVD R/W and Cloud photos 
Question what is a ? drive

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Hi, thanks for reading this and thanks for your help.

My laptop took a fall and after that it doesnt enter the boot sequence for windows, stops at the laptop manufacturer logo.

I remove my hdd from the laptop and put into a external drive i keep for this purpose, checking hdd?s.

I can?t find the drive in my computer but I can see it in disk managment. It says Disk unknown - not initialized.

I?ve tried using PW but i cant see the drive on there. I would really like to keep my files I have on that drive but it seems to me that it toast.


Answer:Disk unknown - not initialized

My laptop took a fall and after that it doesnt enter the boot sequence for windows, stops at the laptop manufacturer logo.

That is bad news mate. Usually a mechanical HDD won't survive physical shock like dropping etc. This is because of the microscopical gap between the head and platter. Heads flying height on modern HDDs is about 5-10 nano-meters. For example: an average human's hair is about 25000 nano-meters in diameter. A drop will most likely cause the head to stuck on platter or cause scratches on platter surface.
I would suggest diagnosing the HDD using "Seagate Seatool" and verifying it's health.

SeaTools for Windows | Seagate
Run the tool and select your external HDD for testing. Then choose "Basic Tests --> Shot Generic" and wait for it to finish.

If the test is a pass, run "Basic Tests --> Long Generic". If either of the test fails, the case will be beyond DIY and you should consult a data recovery pro for recovery.

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Hi, My DVD Recorder died, so I took out the HDD Seagate DB35.2 and plugged it in my laptop. I get the above message in disk management. I also tried Knoppix 7.0 but the disk does not show up. My scope is to save the content in the disk and move it to my PC, is it a mission impossible? Any suggestion is very welcome. Thanks Alex

Answer:Disk 1 Unknown, Not Initialized

I'm not sure you will have much luck if the disk is not readable. You can usually use a Linux distro to try to read it, but you've tried that. If it can be read you can also try Copy & Paste - in Windows Recovery Console. Other than that you could try Recuva and see if that will work. But, if the disk can't be read, I'm afraid there is nothing you can do if those 3 options don't help.

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Hi,I am seeing so many recovery partitions like shown in the photo.I dont know how they were created. I reseted my laptop but it didnt effect the partitions.I want to delete these partitions. Can anyone suggest how to do that.And If I delete those, will I get any trouble if I want to factory reset my laptop.Please help.Lenovo Ideapad Z500 

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I'm trying to find out what the file Unknown (0x0) is in disk IO in xperf trace. Below is information about the io read type to unknown (0x0).

My question is what is it? what is it used for? basic information and the reason it's value is usually greater than all the other files

IO Type: Read
Complete time: 25.506764217
IO time: 3026.318
disk service time: 744.603
pri: 0x03
QD/I: 1
io size: 65536
min offset : 0x000000138ca14000
max offset: 0x000000138ca23fff
process name: System
process: System (4)
thread id: 232
path name: Unknown (0x0)

Answer:What is item Unknown(0x0) in xperf disk io?


Welcome to Windows Seven Forums.

To avoid a lot of Q & A about your hardware and OS configuration, please click on this link to
Edit System Specs

Filling this out, at least partially, will save a lot of time. Another advantage is when posting a new problem, the person answering can just click the My System Specs link in the bottom of your post. No need to search for the information.

If you have multiple systems just indicate that in the System Specs so that we know why many of the fields are blank.

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This 2.5" SATA drive is from a Toshiba that seems to have died this morning. There's no boot, no BIOS, nada.
I removed the drive and attached it via USB to my Win7 box where it shows as "Unknown, Not initialized, and offline." There are no rt-click options in disk management. I can hear the drive spinning, but it shuts down on its own occasionally, and sometimes won't power up at all without a bit of fiddiling.
I can't get any response at all from my Linux box, and neither Test Disk nor Recuva finds it at all.
Is there anything else to do, or is this drive dead, as I suspect it is?

Answer:Disk unknown, offline, not initialized.

If it's not being recognized properly, there isn't anything else that you can do.

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my hard drive changed to raw, and now do not look in windows! In the data manager, I can see that it exists. unknown disk no initiated! I can not format it and can not change partition or do anything else? I have tried many programs, mini tools two but it's coming nowhere! is anyone who has any idea how to format or restore it? I have my child's movie, photo and much more on it.Sincerely, Hamidi

Answer:Hard drive to RAW and unknown disk

Welcome to the forum. Raw means its lost the paritionyou need to download specific parition recovery software which will return all the files. If its not showing in disk manager thats worrying does it show correct in the bios?

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Hello guys! I'm having a problem installing windows XP on one of my computers and it's starting to get annoying. I tried to install windows XP from the CD and i got this error when it asks me too chose the partition or something: 4 unknown disk (there is no disk in this drive) messages. If i press the up arrow i get a blue screen, if i press enter i get blue screen!

Weirdest thing is, i installed ubuntu on it and it worked. It was running windows before, just so you know! ;)

The HD i'm installing it to is the samsung sp1614c. I don't have any drivers for it, in case you're wondering, nor my computer has floppy drive :|

Has anyone experienced this problem? Thanks for you help guys! :)

Answer:Installation error - unknown disk

Does this happen when you try and select a partition to install to? I am assuming yes.

The drive you have appears to be a SATA drive. As setup loads you should see at the bottom a prompt to press a key if you need to load 3rd party SATA or RAID drivers. You will need to follow that prompt to load the drivers for your SATA hard drive. That should work.


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I've had a schlew of problems with a PC starting with a bad installation of Microsoft's Lifecame software leading up to a constantly crashing XP.

I ended up getting a new hard drive thinking that was the problem but at the point of installing XP I get the same problem,

Once XP install starts up and I get to the 'partition screen' I get this as a choice of drives

Unknown Disk
(There is no disk in this drive.)
Unknown Disk
(There is no disk in this drive.)
Unknown Disk
(There is no disk in this drive.)
Unknown Disk
(There is no disk in this drive.)
Upon pressing enter I get a blue screen and can go no further,

A previous response to the same question on here was by

07-Mar-2008, 09:40 PM #2
"Bad hard drive, controller, etc."

So, it can't be the drive as I got the same 'unknown disk' problem with a brand new drive. The power cable and sata cables are fine. If it is a controller - what exactly is that and how can it be fixed?

Answer:Solved: Unknown Disk error

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Running L412 Thinkpad. Windows 7 64bit Home Premium. 360Gb HDD. Downloaded and run WinDirStat which reports that I have 68Gb <unknown> disk space taken up. Windows System restore is turned off. System volume information shows 7.7Gb.  RRbackups is empty. Any ideas much appreciated

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