Computer Support Forum

External hard disk not detected in My Computer and in Disk Management

Question: External hard disk not detected in My Computer and in Disk Management

I have a problem regarding my external Toshiba hard disk 500 GB where it can?t be detected in my computer and also disk management. I have formatted the external HD since I was asked to format it when an error popped up.
So I formatted it and after the formatting completed, I tried to connect the hard disk to my Windows Win 7 laptop. When I connect it to the laptop, it can?t be detected and yet the hard disk is blinking with its white light like it used to when it is connected to the laptop. I tried the disk management thingy, but it can?t detect my hard disk. I tried in other laptops but the result is same
What can I do to make it better? Please help me.

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Preferred Solution: External hard disk not detected in My Computer and in Disk Management

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Answer: External hard disk not detected in My Computer and in Disk Management

First off, how old is your Toshiba external HDD? Also, when it starts to spin up, do you hear any sort of clicking or whining noise?

If you hear any noises that sound off, it's possible your external HDD is failing.

When you formatted it, what file system did you use to do so? Because sometimes even if Windows can't detect it, I have had success with booting with a Ubuntu Live CD, and then connecting the external HDD in order to format it that way. It all has to do with how Windows formats HDD's and how Ubuntu and other Linux systems do.

If you can I recommend downloading Ubuntu onto a CD and boot to it on one of your computers, in the Live CD mode, so it doesn't install anything. Once its loaded, plug in the Toshiba and try to format it as NTFS (this is important, because Ubuntu doesn't use it as a native file system, so you need to make sure that NTFS is selected on the format window, not EXT4 or the other types of Linux OS File Systems)

If it doesn't work, post back here, and I will see if I can help you some more. Also feel free to PM me if you have any other issues.


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I have had the same Toshiba external hard drive for years and have never had any problems plugging and using from any machine, mac or pc. I recently had to reformat my hard drives and re-install windows 7, and ever since I have been unable to access my external from this machine. It still works fine on my laptop, and when I plug it in to my tower, it still recognizes that "External USB 3.0" has been plugged in and downloads the drivers. However, the drive appears neither under my computer nor disk management, nor diskpart -> list volume. It does show up in my device manager as USB mass storage but uninstalling the drivers and plugging it back in does nothing. Is there anything I can try before moving all my files off and formatting the drive, and will that even help? Thanks for reading.

Answer:Solved: External hard drive detected but not under my computer or disk management

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I have a samsung SV0411N ATA IDE hard disk, just enough to meet my memory needs.the problem is it doesn't get detected, there is no mention of the device in MY Computer. I tried to install XP on it, but set up displayed a message saying it could not read the drive.I used Vista disk management, from another HDD and in disk management, the disk finally showed up. but as soon as i start disk management, it asks me to innitialize the disk, i click OK, it returns data error (CRC). and then in the disk management window the disk shows up as a 37 GB unallocated space.when i try to create a new simple volume, it says "operation cannot be completed because the disk is not innitialized"Chkdsk dosen't read the drives, the samsung doesn't even have a drive name yet.

Answer:Hard disk not working but detected in BIOS/disk Management

In disk management, right-click on the drive and format it.

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Hello all. I've used this forums many times before and decided to join. The information is very good here.

Anyway, I'm working on a friends computer (Dell Optiplex GX520 with Windows XP SP3) who had some spyware on it. I think I have it all removed but I have this one strange issue I've not come across before. I discovered it when trying to run the disk defragmenter and I kept getting an error message that said it was unable to start. The C drive is present there and other USB drives that I connect as well. But when I go into disk management, the only thing listed are the USB drives and the CDROM drive, NO C drive or any other volumes. Also, when I tried to run chkdsk on reboot, I get a message saying that it could not check the disk for some reason (flashes by too quickly). Can someone shed some light on possible conditions that would cause Disk Management to not be able to see the main Volume?

BTW. I removed some trogans and installed MS Security Essentials. Computer seems to be working fine except this issue. I don't have much history on the computer. Hard drive is reported in Device assignments as ST3808110AS, I'm currently running sfc /scannow to check Windows files.

System File Check just finished. I need an XP Pro disk to repair Windows and I don't have one. Oh well. Please let me know if there's a way around this.

Answer:No hard drives detected in Disk Management but C drive is in My Computer. ?

Can you post a screenshot from Disk Managment?

Logically...any connected drive should always appear in two places...the BIOS and Disk Management.

The only possible reason that I can think where this might not if two drives are assigned the same letter by Windows, only one can be reflected.

As for C: being reflected in Windows/My Compter...any version booted into appears as the C: drive, as any person who does multiboots will tell you. The C: drive is nothing but a designation for the O/S partition/drive booted into.

As for your XP Pro situation...there is no way around the requirement for the system files for the applicable O/S installed. XP Home is not Pro and vice versa.


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i bought a 250gb samsung external hard drive ,when i connected it to the usb port my computer could not detect it either in disk management and my computer ,so i decided to rebot the computer and go to the bios ,i could not also see it in the bios.funny enough my friends computer could easly be seen when connected both in the disk management and my computer

please help me .am currently running windows 7 build 7077

Answer:External hard drive not seen in disk management and computer

USB drives dont show in BIOS.

The USB adaptor may be USB 2 and your USB may be usb1 and as such is having trouble seeing the drive.

Or your USB sockets or drivers are faulty, try another USB device in them

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Tried just about everything but I still can't seem to get my external hard drive to show up in my disk management or computer. It say it's installed and ready to use but I don't see it.. only in the device manager and in devices and printers I can see it.. but nowhere else.. I'm working with windows 7 upgraded from windows xp but has be downgraded which was originally windows vista I think.. A friend gave me a computer and I had it upgraded.. can any one help me get my computer and external hard drive straight. Thanks.

Answer:Don't see my external hard drive in disk management or on computer

Check this thread out:

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I've been having this problem for a few months now. I recently built my own computer, having been on a lap top for a couple of years, and found my old external hard drive. I plugged it in to the new computer, and it said something about needing to be formatted, which I promptly did due to nothing of importance being on it. I went to sleep, and woke up to see that it couldn't be formatted.

This is where my issue begins. It no longer appears in Computer, or Disk Management. Disk Management won't even load if I have the drive plugged in. There seems to be no way at all to format the drive, since Computer, and Disk Management both don't load when the drive is plugged in. Any help?

Answer:External Hard Drive is Not Recognized in Computer or Disk Management

I have a similar problem. I have an old external hard drive and it wont showed up or open under my computer or disk management. I tried to open it under disk management but there is no way to be found. The files F, G, H, etc are empty. I really appreciate an extra help here since I am not a computer expert. Thank you!!!!

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The Seagate Momentus 5400.6 hard drive I'm using is from my old laptop it has 4 disks.
After I put it in the (IT-CEO IT-700) enclosure, and connect it to my new laptop it does not show up in 'My Cumputer' and 'Disk Management', but displays in the 'device and printer' section of control pannel.
I also can't eject the hard drive, even when I'm not doing anything to it, the (IT-CEO IT-700) enclusre's blue signal light just keeps flashing for a while then goes off for a sec, then resume flashing again.
My laptop also keeps trying to install the hard drive.

I tried reinstall the hard drive's driver, but that did not solve the problem.

Please Help.

Answer:External Hard drive not showing up in 'My Computer', and 'Disk Management'

Have you tried using different drive enclosure other than the IT-CEO IT-700?

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I have a Western Digital (WD) 250gb external hard drive and run Windows XP on my Asus Eeepc laptop.

One day I pulled my external hard drive straight out of my computer (didn't use "safely remove hardware"). From now on it isnt displayed in my computer, and it doesnt appear in disk management either. When I open device manager and then open my WD SES Device, it tells me the device is working properly. I have tried updating the driver and uninstalling it, but everytime I plug it in reinstalls itself and tells me it is working fine.

I am not a computer guy. I have read other forums and none have a solution for me. Does anybody know how to access my external hard drive? (please write responses in simple language with simple steps I can follow)


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I have an external hard disk which got corrupted. When i connect the disk through USB it shows as an unknown device in the disk management with no option to format.

In My computer the device is showing as H: drive but unable to access it. It asks if i want to format or not but when i go for format it does not do it. I want to erase the disk completely as of now. What should i do??

I tried to load it from linux but there it shows as Device Error. Disk Failure is Imminent.

Can something be done or is it a hardware failure.

Answer:External Hard disk showing as RAW in disk management

Sounds like the drive is failing or the circuitry in the enclosure is faulty.

I would first remove the drive from the enclosure and hook it up as a slave to a desktop PC. See if you can then access it. If you can, then post back for further instructions with the version of your OS.

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I have an external hard drive that wasn't showing up anywhere on my computer, so I replaced the hard drive case and now the external hard drive is found in device manager, but not in disk management or my computer. I am running windows 8, and there is data on the external hard drive that I would like to have access to.

The disk drive that is in the case is a Samsung HD103SI

I have used the rescan command in disk management. It showed as Disk 2 Unknown and not initialized. (Please note this is not a new disk and it has data on it that I am hoping to retrieve).

Some information that might help:

The system is:
LENOVO 90B70019US Lenovo H50-50

Using Belarc Advisor the drives show as:
MATSHITA DVD-RAM SW840 [Optical drive]

ASMT 2115 USB Device [Hard drive] -- drive 2, s/n 00000000000000000000
ST1000DM003-1ER162 [Hard drive] (1000.20 GB) -- drive 0, SMART Status: Healthy
WDC WD10EZEX-60M2NA0 [Hard drive] (1000.20 GB) -- drive 1, SMART Status: Healthy

Any help would be greatly appreciated. Thank you

Answer:External Disk Drive Shows Up In Device Manager, But Not In My Computer Or Disk Management

Just to be sure...
Is the replacement HDD case USB powered?

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Hi, My Seagate 2TB external hard disk is not getting detected by my PC, doesn't show in 'Safely remove hardware' option.

However, based on one old thread, I installed Partition Recovery Wizard and this is how the scan looks. Please help.

Answer:External Hard Disk not detected, visible in Disk Manager

Please find the screenshot of disk management

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Hi, My Seagate 2TB external hard disk is not getting detected by my PC, doesn't show in 'Safely remove hardware' option.

However, based on one old thread, I installed Partition Recovery Wizard and this is how the scan looks. Please help.

Answer:External Hard Disk not detected, visible in Disk Manager

Please find the screenshot of disk management

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My external hard drive seagate 1TB not showing in my computer and disk management. It happen after I install seagate dashboard. It showing in device manager under disk driver but I can't access this drive. I'm trying to get into BIOS while inserting the external drive but my computer stuck. When I pull out this external hard drive my computer can enter bios and boot up normally. Please help. I got very important data in my external hard drive. TQ very much


I assume that if you start without the 1TB HD that everything works normally.

If this is true, when you connect the 1TB HD, do you get any indication that you have added new hardware? You should.

Is your connection to the 1TB HD via USB?

Never mind. One of your images shows that the Seagate is recognized. From that, I conclude that the USB interface is good

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Hey everyone,
I just purchased a new external hard drive for my laptop. I have a Sony vaio, and the hard drive I bought is a Micronet Platinum XL 500gb. I turned it on and it didn't show up in My computer so I went into the disk management and noticed it was not activated. I activated it and then still nothing.

That was obvious because the drive had not been formatted. So I clicked create new partition and started formatting it. All was fine, it was late so I went to bed, got up in the morning to see how it completed and it said that the format was NOT successful. Now it won't show up in My Computer, nor will it show up in Disk Management. Should I just create a WIN98 bootdisk and format it from DOS, or is there something else I can do?


Answer:External hard drive not showing up in Disk Management

If it won't show up, I don't see how you can format it in DOS.

Anyway, check out Device Manager and tell us more.

Other suggestions:

1. Test your drive on another pc
2. Check your bios settings

good luck

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Windows 10 disk management shows external hard drive twice.
How to fix?

Answer:Disk Management shows external Hard Drive twice

Can we have some screenshot? Which version of Windows 10 are you using? ( To check, press Win+R and enter "winver")

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I'm currently using a Samsung NP-QX410, and I'm trying to install an external hard drive onto the laptop so that I can backup the data.

The hard drive is a Western Digital Scorpio 750GB
The hard drive enclosure is a Vantec NexStar TX 2.5-Inch SATA (I know it's cheap. That might very well be the problem).

When I plugged in the hard drive into the USB ports (I've tried all of them), the light on the enclosure lights up and I can hear the hard drive spinning. When I look around, I can't find any signs from my laptop that a hard drive has been plugged in (or that anything at all has been plugged in for that matter). After some digging I found out it's suppose to appear in the Disk Management page, then create a partition and do a few other things with it.

My disk Management shows no signs of the hard drive though. All it shows is Disk 0 (the basic disk) and CD-ROM (for DVD's).

To me the problem just looks like I just bought a cheap enclosure, but I'd rather ask to make sure there isn't an obvious step I skipped. If anyone has any ideas I'd really appreciate some help.


Answer:External Hard Drive Not Showing Up In Disk Management

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I have a Simple Tech Pininfarina 320 GB external hard drive that is no longer recognized by two different PCs, even under disk management. When plugged into the USB, the PCs do try to install the driver, but fails. It is recognized under Devices and Printers as Unspecified and with the information Model-Simple Drive, Category - Unknown, and Status-Software is installing for this drive. The troubleshooter searches for a driver, but does not find one. Basically I get the information that "There is a problem wiht the driver for USB Mass Storage Device. Reinstalling the driver might fix this problem." But I cannot find a driver for this hard drive.

Can anyone steer me in the right direction?

Thanks in advance!

Answer:External hard drive not recognized in Disk Management

The system is telling you that there is a problem with a USB driver, check in the Device Manager for any yellow warnings. Under Universal Serial Bus Controllers you will see a driver for USB Mass Storage Devices, right click and uninstall it then reboot, Windows should reinstall it, or go to the motherboard's manufacturer's site and download and install the latest chipset drivers..

There are two other possibilities, the hard drive has failed or the circuitry in the enclosure has develpoed a fault.

Remove the hard drive from the enclosure and (if you have access to one) hook it up to the internal connections of a dektop PC. Or, purchase a USB Hard Drive Adapter (about ?10) from a computer store or eBay and then plug it into the USB connection on any computer and see if you can then access the drive.

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My external hard drive seagate 1TB not showing in my computer and disk management. It happen after I install seagate dashboard. It showing in device manager under disk driver but I can't access this drive. I'm trying to get into BIOS while inserting the external drive but my computer stuck. When I pull out this external hard drive my computer can enter bios and boot up normally. Please help. I got very important data in my external hard drive. TQ very much

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Hello All,

I have a 250 GB external hard disk. I copied some movies onto it from a friend who now says that his drives were affected.

The hard disk ran but after I removed it and plugged it in again, it is not being detected by any computer. The blue color light glows and I can feel the motor running but it is simply not being read by any computer.

Can you please help me with some suggestion ?

I thank you in advance,


Answer:External hard disk not detected

I tried to plug it in again, now it makes some strange noise as if some things it stuck and its scratching against something, its a start stop kind of noise. And then it makes the sound, which a USB device makes when it is plugged out !!!

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Hi,I have a AMD ATHLON XP 1800+,Windows XP SP2, my external hard disk is not getting detected can someone help. It is a new hard disk and it's the first time I am using it.ANy help or suggestions?

Answer:External Hard DIsk not getting detected

Go Start>Run, type in:diskmgmt.mscClick OK.Is it listed there?

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I brought a Seagate Expansion Hard Disk about six months ago and have never had problem with it till now....
The problem is that my HD does not get detected if its plugged in after the windows startup.... In most cases it hangs my PC. The green light blinks so I'm positive that it's not a problem of the HD. The safely remove hardware icon also comes up. But the Autoplay menu doesn't show up and its icon wont be there in My Computer (that is, if I'm able to open My Computer. As I already stated, in most cases, the PC gets stuck).
I discovered that there are no issues if I keep it plugged in the USB port before the startup, but that is an inconvenience since I only have one free port . Ive tested with other pen drives and they work just fine. I even tried plugging it to a different port, but to no avail. It would really nice if you could help me with this....
Thnx in advance.....

Answer:External Hard Disk not being detected...

Try it on another machine. It sounds like the drive is having some problem. Run chkdsk /r on it in the other machine and check for bad sectors.

Hopefully, the data was backed up recently. External drives are the most unreliable of all storage media. If not, you better make a fresh backup in case something is wrong with the drive.

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I did not even know of such things a few days ago, but in diagnosing an issue I was having, I discovered that all of our external hard-drives, regardless of which of our computers they may be connected to, show as Active in disk management.
All of our ext. drives are identical 1-TB Transcend; one is brand-new and we have had the others for a couple years.
If I ever did anything to these hard-drives that would make them show as active, I have no idea what it may have been; they have probably been like that for a long time.
The only reason I even found it out was that I had to look in Disk Management.
Has anyone else had their external hard-drive to show as Active ?
Is this just a weird thing with Transcend drives ?
Thanks for reading.

Answer:External Hard-Drives Show as Active in Disk Management ???

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I had my external hard disk connected to my laptop, and the wire accidentally came out for a second. But right away, it reconnected to my laptop. However, rather than working normally, my computer detected it as a new drive. And then I don't know what happened but it wouldn't be detected at all.
The light on the hard disk is on, so I know it's not an issue with the power. But I don't think it's being detected anywhere on my computer because no pop-up or anything appears to install a new hardware. Nor is the drive visible in My Computer.
I tried reinstalling but to no avail. I also tried disconnecting and reconnecting the hard disk a number of times. Any help would be appreciated. Thanks.

Answer:Solved: External hard disk not detected

Actually I've got it to work. So kindly remove this thread.

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external hard disk was connect and detected also but not show in PC win8.1

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I joined the forum as the activity seemed high and knowledgeable . Here is my problem.

I have an 500 Gb external hard drive (one of those slimeline jobs) and use it for backup and external storage fvrom my personal laptop.
It worked fine for ages and for a while I didn't use it (didn't need it).

When I went back to use it recently it wasn't detected by my laptop (Win 7) anymore. I can feel and hear it spinning but it is not being detected. Being somewhat technical I tried the following

- I went to my local PC hardware store and bought a new cable. They helpfully plugged it in there and it showed up straight away there.
- When I got home I plugged it into laptop and again not detected.
- I trawled around disk management and no luck in it being seen.
- We have a desktop PC in the house (running Vista) and when I plugged it in there it was seen find there as well.
- My other USB devices are not having any problem so as far as I know the ports are fine.

Any ideas as I am tearing the hair out of my head

Answer:External Hard Disk not being Detected (only on my machine)

Have you tried plugging it into a different usb port on your laptop? When it's plugged in, what does your device manager show...any yellow triangles or question marks? Is there any software/firmware to download?

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i had an old notebook with an overheating problem that I thought I had fixed, so I transferred all my music and picture files to it. then the problem recurred and the computer won't reboot. So I pulled the hard drive and put it in an enclosure I've used before, and am working through trying to get it recognized by my new notebook as an external hard drive.

Device Manager recognizes the drive and indicates that it is working properly, and it appears in Disk Management as well. However, in Disk Management, it shows as Disk 2; Unknown; Not Initialized. When I attempt to initialize it, I get the error "The request could not be performed because of an I/O device error."

I've tried to initialize it as MBR and GPT, with no luck, and I've checked the device drivers to make sure they're up to date (they are).

What else can I try? I will try anything, but if it's hopeless, I need to know that too. I just don't want to give up if there's a chance!


Answer:i/o device error when initializing external hard drive in disk management

How is it powered? It is possible that the enclosure does not supply enough power for that drive. Can you connect it internally?

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Hi all,
I had a problem of Windows 7 x64 Pro not seeing my 8TB Seagate USB HDD no matter what I tried, it just would not show anywhere except in "Devices and printers" and there was nothing I could do with it there!
After several weeks and hours spent on the net searching for an answer I struck the resolution by chance, because i like to fiddle about my operating system.
In case someone is still facing such a problem of external USB HDDs not being recognized and not even showing in "My Computer" or in "Disk Management" (as I had), here is what I did to resolve this problem:
1. Open "Device Manager>Universal Serial Bus Controllers",
2. Look for the USB "Mass Storage Device" and uninstall it by selecting it and hitting the "Uninstall" menu button at the top (with the red X on it),
3. Do a "Scan for hardware changes", the system will find and install the appropriate drivers and you should be able to find and use your device now.
I hope this will be of help to someone.

Answer:External USB HDD not showing in My Computer or Disk Management

Info save to my hard-drive, thanks! I could have used that some time ago. May need it again someday.

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I am having a 650GB Samsung Hard Disk. Once I was transferring files from the hard disk to my PC and lights went out. Now when I connect my hard disk it is not being detected though it shows up in the Disk Management menu. I have tried formatting the HDD but it shows time remaining as 300 hours so I had to stop it midway. Is any other solution available for it...??? Please help...!!!

Answer:Samsung 650GB External Hard Disk Not Being Detected

If you feel confident enough, Open it up and remove the hard drive from inside the enclosure and fit it directly in to your pc.

This will help determine if the hard drive or enclosure is to blame.

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I purchased my XPS 13 9360 in Dec 2017 only. I tried connecting my headphones, normal 3.6mm jack. I think it's a loose connection or something. It's not getting detected or plugged in completely.

Also my USB External Hard disk is not even detected or being read. Absolutely nothing happens when I connect it. It's not even recognizing the device.

Kindly let me know the solution for this.

Answer:XPS 13 9360 External Hard disk (USB) and headphones not detected

You have 30 days to return for receive a full refund.
Consider doing that.

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I have a problem with a new external hard drive I bought. In Windows XP, it appears as "Seagate Expansion Desk USB Drive" under Disk Drives in Device Manager, but it doesn't appear in Disk Management, where all the drives are listed. It also doesn't appear in My Computer. How can I allocate it a drive letter so I can use it? My drives go up to K, so it should be allocated L drive. Any help would be appreciated.

Answer:Seagate External Hard Drive shows up in Device Manager, but not Disk Management.

Attach the drive to a different usb port. Open a command prompt. Type
list disk
Copy and paste the result. You can do this by clicking the icon of a monitor in the menu bar Edit > Select All. Edit > Copy. Right click in your post > Paste.

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Hi folks, I got my Lenovo G50-70 just 2 months back. It was working good but now this laptop is unable to detect any External Hard disk / Mobiles, which were detected and working well with my laptop routinely. Anybody has any solution for this problem. plz post. Many thanks in advance.  Regards,MA

Answer:Lenovo G50-70 External Hard disk / Mobiles not detected by laptop

Hi Nueva_entrada2,
Welcome to the Forums        
As per the query we understood that you are facing issue with USB port in your Lenovo G50-70 laptop.
Try to update the USB driver and check for the issue, check if the USB is enabled in the BIOS.
Click here for the USB driver.
Hope this helps. Do post back if the issue persists!                                                   
Best regards,                                                          
Ashwin. S

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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I've had my Acer Aspire 5310 laptop for a few months now with Windows Vista. I have an 80GB hard drive, partitioned into two drives as default.

Until now I've never noticed that the numbers didn't add up. I know when you buy and 80GB hard drive, it should actually show up as less due to bits and bytes and what not (80GB=74GB roughly) but I found something fishy in Disk Management. There is a drive showing up with no letter assigned to it which is nearly 10GB in size and after doing the math it accounts for the 10GB i lack after adding my two 32GB hard drives together.

So I have 2 x 32GB drives plus this weird drive which is 10.

I have attached the screenshot of disk management.

If anyone knows what is going on here I would very much appreciate it!

Cheers, Darren (newbie)

Answer:Problem with Vista Disk Management/Being robbed of hard disk space!

has this just recently appeared? This is a longshot, but if you have Kaspersky lap installed then that could be the problem. It autologs roughly 10 gigs of data without your permission, it is easy to get rid of, but annoying none the less.
However this doesn't seem to likely as what seems to have happened here is that you have accidently split one of your hard drives into two. Either that or a program like deamon tools has created a virtual drive. Do you use either deamon tools or alcohol 120?

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Hello, i am using a seagate 1TB harddisk. When i connect it to usb port in front panel of my CPU, the computer is not detecting it.

But When i connect it to usb port in back panel of my cpu, It works fine. My system detects the hard disk and and everything is fine. How to correct this strange problem

Note : my Pen drive and other USB things works fine in all the ports in both front panel and back panel.
Please help me.each and Every time when i want to connect my hard disk, I have to take my CPU out from its shelf and connect it in the back usb port. Its tideous for me.

Answer:Seagate external hard disk not detected in front panel USB port

Well not exactly knowing what type of a computer we are talking about here, I can only say, that what your are reporting is completely normal. Most computers I've ever touched have passive styled USB ports on the front of the computer, and aggressive USB ports off the back that can handle just about anything you can hook up to it.

So stop trying to connect that external hard drive off the front, not enough power and not enough data exchange rates. I would recommend that if you have all your USB ports off the back of the computer taken, I would start thinking seriously about an "amplified" 4 port USB HUB. Remember the HUB your looking for has it's own power source, and does not relying on the computer at all for it's power.

The following one is a good one, a friend of mine got her's about a month ago and has not yet reported any problems.

Hope this all helps....

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I am facing problem of unable to shrink c drive in my windows 7 home premium.I have read everyone writing in about not to change the hard disk to dynamic type,but after partitioning one time using disk management now all my partitions are dynamic type & I still have 288gb left in c drive.
I need help.

Answer:hard disk changed to dynamic type after using disk management

Read this tutorial on how to covert back from Dynamic. Convert a Dynamic Disk to a Basic Disk

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I ran Dist Test in system diagnostics and read failed. Error log read Hard Disk Failed id# osng6c-5r76hw-xd6v4k-6odpo3 then next line same id but tune up failed then run in failed

Answer:SMART Hard Disk Error detected an imminent failure Hard Disk

Confirmed, You have a bad drive.

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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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The Seagate Momentus 5400.6 hard drive I'm using is from my old laptop it has 4 disks. After I put it in the (IT-CEO IT-700) enclosure, and connect it to my new laptop it does not show up in 'My Cumputer' and 'Disk Management', but displays in the 'device and printer' section of control pannel.I also can't eject the hard drive, even when I'm not doing anything to it, the (IT-CEO IT-700) enclusre's blue signal light just keeps flashing for a while then goes off for a sec, then resume flashing again. I tried reinstall the hard drive's driver, but that did not solve the problem.Please Help 

Answer:Hard drive not showing up in 'My Computer', and 'Disk Management'

does it work fine when u put it back into the old laptop

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hi i am new to this and 18 about to go to uni next week so i need some help and FAST! i bought a 320gb hardrive in june 2010 and it was perfect i made a back up of my whole HP system. However a friend of mine plugged my hardrive into her apple mac and i think my hardrive must have synced to her hardrive called time machine or something like that and now i am trying to use my hardrive in my hp laptop it wont work.

ive tried everything it wont show my computer i searched for help all over the net and with technicians on the phone saying to go into disk management and its not there either. One techinician was sayin i might have to reformat it on the mac.

this cost soo much money and i cant afford to buy another one nor can i afford to lose all my data on this one..

please is there a genius out there that can help me!!!!!!!!!!!

Answer:Hard drive not recogized in my computer or disk management

Timemachine shouldn't automatically synchronise to the hard drive, unless told to do so. Also, in order for time machine to function on that drive, it requires it to be formatted in the MacOSX native filesystem.

In case your not aware, Timemachine is Apple's backup software, designed to backup Apple systems.

If the data on the hard disk is not of any consequence (e.g. it contains no essential data), it can be formatted as NTFS, which will then be read by Windows. Unless it has been formatted as a Mac OSX partition it should be read natively anyway. In other words, it should be NTFS still.

Lets go back to basics:

1. If it's an internal hard drive, does BIOS identify the hard disk?
2. Your positive disk management doesn't identify the hard disk?

You could use a bootable partition editor like GpartED to boot from the DVD drive and inspect all your connected partitions.

You could also boot from a Linux Live distribution like Ubuntu as well, which would enable you to check your connected partitions/drives.

The fact Windows is refusing to identify that hard disk is leading me to suspect its been re-formatted as a Mac OSX filesystem and as such can't be read from Windows. If its been re-formatted your data is already lost, in which case just formatting it will resolve your problem.

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I tried to boot or to reinstall windows xp service pack 1 and I keep getting told that no hard drive is detected on my computer. I may have changed some things in setup, what might it be? What do I do next?

Answer:no hard disk was detected on your computer?

Do you know if you have a SATA type hard drive? Had you used the "scan my system" at the home page here, we would have some specs on your computer. Either use that method, or supply specs for further help.

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my hard drives are working properly but they are not displayed in the disk management.
so what can i do for it?
and my computer icon on the destop was deleted by mistake so from where i can get back my computer icon also i deleted the icon from the recycle bin..

Answer:hard disk not displayed in disk management

Hi chinu89,

As far as the icons go, the following tutorial covers the procedure to restore both the icons you mentioned: Desktop Icons.

Do your drives show up in Windows Explorer?

Please attach a screenshot of Disk Management so we can see what it looks like as things currently exist. It will be easier than asking a dozen questions about what is or isn't there. We can then proceed from there.

Also, please update and run a full AV scan with your security software. Also, download, install, update, and run a full scan with Malwarebytes: This type of problem can be caused by malware - so let's rule that out.

I hope this helps.

Thanks and good luck!

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This is my first post in this Tech Support Forum,
When i go to Disk Management i am unable to see any disk partitions in that area only i can see the dvd Rom drive no hard disk and its partitions.
I can access the hard disk from explorer, go to any drive it dosent seams any problem there i can able to do whatever i like to there is no issue.
The only problem is that i am unable to locate my hard drive from Disk Management.
Hope I can able to do justice to the question, as i not a very good at computers so bear with me
thanks for any help regarding this issue
thank you for urs help and suggestions

Answer:Not able to see hard disk partitions in Disk Management

Please attach a screen shot of Disk Management so we can see what your seeing.

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I am having this Hard Disk problem. My old Hard Disk (Samasung 500GB) (bought in 2010) started showing signs of corruption (like Windows doing chkdsk at every boot, and data getting lost). So I bought a NEW Hard Disk (Western Digital 1TB) last month (Sep 2016) to backup all the data from old one. I didn't have time to backup but wanted to use PC so I Clean Installed Windows 7 64bit on the New Western Digital 1TB and used it about a month without any problems.
A couple of days ago i decided to backup up the data. I reformatted the New Western Digital 1TB with Gparted and did a clean Windows 7 Install again. I connected the old Samsung 500GB to the motherboard and started copying the files to the new Western Digital 1TB.
Suddenly Windows showed me an error "Windows detected a hard disk problem" which makes sense because the Samsung 500GB is old and might be failing BUT the error is showing both of my Hard disk in the dialog box.
Is my new hard disk corrupt as well?
Why is Windows showing my new hard disk as failing?
Can Windows mistakenly show both hard disk in error?
Please help i am confused. sorry for a confusing question. i will answer anything required.
I have taken the screenshot of the error message, they are in attached files.
1)The 1st Screenshot shows both my Hard disk in the error box (OLD Samsung and NEW Western Digital WD)
2)The 2nd Screenshot shows only one of my Hard disk and its the new one (Western digital WD)

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HP All-in-One ENVY 20 TouchSmart PC  HP 20-d034 FAILURE ID : 60FQG2-008GM-MFPP0K-60HR03PRODDUCT ID : H3Z72AA#ABA I moved up to windows 10 with the free upgrade.  I received the failure message from Windows and ended up resetting my computer to its original state which was windows 8.  It is now 8.1 and the hard disk problem still pops up. I don't have alot of experience replacing hardware in computers.  Is this an issue I can resolve myself?  Please advise. 

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hello I need some help with a hard drive I just put into my system is this is the wrong part of the forum please let me know

I recently installed Vista with on this machine with this new HD deatched though it had previously been used in this computer running xp.

It is a IDE hard drive and although device manager recognizes it as a disk drive I cannot get windows explorer or disk management to notice it. It has a ntfs format.

Thanks please let me know any additional info I should post. my other drive is SATA drive

Answer:2nd HD (IDE) not detected by disk management

Hi Usurperr, and welcome to Vista Forums.

It sounds like you may not have you BIOS setup properly for the drive. Consult with your motherboard manual for this to help you also. You will need to check in BIOS to make sure that the port you plugged the new IDE hard drive into on the motherboard is set for IDE in the BIOS (CMOS or Integrated Peripherals) settings and not for SATA or RAID.

Also, double check you IDE ribbon cable and power connections to make that they are secure and fully connected.

Hope this helps,

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Hi, everybody. I am having a horrible problem with the disk drive! OK, let me explain... (By the way, my OS is Windows XP Professional SP2)

As my detailed explanation is very long, let me tell you the summary of my problem first:


I switched on my computer, but an error message appeared saying "Boot failure. Insert BOOT disk into A: Press any button when ready"
Used Windows CDROM and selected the repair Windows option. But the repair process failed because it said that there are no hard disks in my computer eventhough I have a primary disk and slave disk in my computer.
Used BOOT diskette. Following options appeared:

First harddisk, first partition
First harddisk, second partition
First harddisk, third partition
First harddisk, fourth partition
Second harddisk, first partition
Second harddisk, second partition
Second harddisk, third partition
Second harddisk, fourth partition
Previous Operating System on C:

Selected 'first harddisk. first partition'. Following error message appeared:

"Windows could not start because of a computer disk hardware configuration problem.
Could not read from the selected boot disk. Check boot path and disk hardware.
Please check the Windows documentation about hardware disk configuration and your hardware reference manuals for additional information"

Entered BIOS. Statistics showed that primary hard disk and slave hard disk 'not installed' although I have a primary hard disk and slave hard dis... Read more

Answer:Solved: Computer can't boot up and hard disk not detected!

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Hi to all,My Computer is IBM make and my harddisk capacity is 40GB.In order to increses my harddisk capacity i have added one more with a capacity of 250GB and that to was splitted into 3 segments namely E,F,&G.While first accesing this E,F,&G it asked to format E,F,&G and accordingly i have done it.After this i restrated my computer but it is not showing that new disk (E,F,&G).So will you please help me to rectify this problemthank youR.ARUL

Answer:Additional Hard disk installed is not detected by computer

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I have just switched and upgraded to windows 7 from windows XP...the hard disk/drives C:/ D:/ and E:/ show up normally in My Computer but the hard disks and partitions drives F:/ G:/ and H:/ do not show up....only after the PC is re-started do they appear and they after leaving the PC idle for a while or overnight it again disappears from My Computer. Is this a Power Management setting? The Drives F,G and H are secondary hard disks in the SATA slot. My IT engineer from my office has tried changing the cable connecting these hard disks but that does not seem to solve the problem.

Pls advise and help.

Answer:Secondary Hard disk not being shown or detected in My computer

Sometimes if drives are set to sleep after a certain amount of time, they go off line and disappear. Used to happen with an old PATA drive I had and I thought it was broken, but it wasn't.

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 USB.jpg   66.11KB
 USB1.jpg   94.2KB
 USB2.jpg   90.44KB
  0 downloadsDear all,
I will enclose here my complaint which I send to motherboard maker Gigabyte, regarding USB external hard disk problem. Please read it and if anybody knows how to solve this, thanks.
My computer has external hard drive connected to USB 2.0 port(s), which is extremely slow. Drive is Transcend StoreJet. No drivers exist for it. It works perfectly for other I/O operations like copy, paste, delete,etc. When I try to make hard disk image with any program, and store it on Transcend Store Jet, speed starts with 50MB/s but drops to nearly zero in few minutes. You can see example on attached picture. It is the same with any program. Disk image would take more than one day to complete, if it completes at all. Actually, I never managed to finish image with any disk imaging software. I tried all usual software for that: Paragon, Aomei, Acronis, EaseusToDo, Drive XML, etc. Are there any USB or other drivers which are responsible for this issue? Can Gigabyte be serious regarding its costumers and provide them solution in order to use USB ports for most important thing (backup)? In this case, making disk image is totally impossible. USB 2.0 ports have speed оf 480 Mbit/s, theoretical. This is far cry from situation here. So, ... Read more

Answer:Problem with slow (impossible) disk image making on USB 2.0 external hard disk

This could be any issue causing your problem , software , usb drive may have errors on it / or ?
Imaging your 150 Gig via Usb will take time { Mine are about 40-50 Gig } Operating System And Programs Only.
I personally partition my main Drive eg: c:\ and d:\ and so only the operating system is on C;\
Then use the D;\ to store your personal files. , this way your c:\ wont keep growing in size as you are storing everything there.
If you cant actually do anything with the computer because of warranties as you stated "just serviced" , ask them why you cant Image Drive.
1/ Try another hard drive to backup to.{ Usb will always be slower } than directly connected to Mobo.
2/ Use Mini Tool Partition Wizard [ Free } to create another partition -
3/ Remove all Temp Files / Restore Points / etc with Ccleaner { Free ] -
    this will reduce C:\ size to minimal size { defrag drive also }.
4/ Use any program to Image C:\ { I use Acronis }. to the D:\ Backup Folder.
5/ Then copy the image to any portable drive or external if need be.
6/ Use the D:\ for your personal files and folders as a backup also.
Sometimes you have to do things yourself - than rely on Service Centres and Costs.
If you run a Business then you claim all your costs incurred.
All this will take time but you will have backups and feel at ease.

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Couple of hours ago my Windows 7 could not recognize my external USB hard disk (Maxtor Basic). It came up on Disk Management and Device Manager but not on My Computer. However I fixed it (by deleting its line off regedit in HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices, plugging out the ext. HD and plugging back in). Windows automatically installed the drivers and I could access the drive.

But now Windows shows my Maxtor as a fixed disk drive, instead of "devices with removable storage". I still have the option to "Safely remove hardware and eject media" from taskbar, however I rather have Windows treating it as a Removable USB Storage so that the disk can sleep when not in use. I am pretty sure it has something to do with regedit, so any help would be appreciated.

Answer:USB external hard disk shows up as internal fixed disk

Welcome to Windows 7 Support Forums, Sactyr.
A word of caution! Its never a good idea to alter your register,
IMHO please review your device manager and check your devices for your disk drives, check for any warnings in the driver area.
I'm attaching my screenshot for comparison as I have a similar configuration.

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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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If I am saving a backup to internal hard disk vs USB 3.0/2.0 USB external hard disk

1. Backing up to an internal 3.5 hard disk vs backing up to an external 2.5 hard disk using USB 3.0, roughly how much extra time would the external backup need to complete the backup process?

2. Backing up to an internal 3.5 hard disk vs backing up to an external 2.5 hard disk using USB 2.0, roughly how much extra time would the external backup need to complete the backup process?


Answer:Speed of saving to internal hard disk vs USB 3.0/2.0 external disk?

There's no definitive answer, it would all depend on which internal drives you had (SSD/HDD, SATA 6GB, SATA 3GB) and which external drives you had and their relative transfer speeds. It's all just guesswork without that info.

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hi all,

i would like to ask you a very basic question:

What is the difference between an external hard disk and an internal hard disk mounted on external enclosure?

Is using internal hard disk in external enclosure risky in terms of loosing the data?

Is using internal hard disk in external enclosure reliable to use?

kindly let me know as there is a vast difference in the price of these hard disks. The external hard disk is costing more and if i use internal hard disk in external enclosure price is very much reduced.

my only concern about using internal hard disk in external enclosure is the reliability.

thanks in advance,


Answer:External Hard Disk v/s Internal Hard Disk in External Enclosure

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Is it possible to create the recovery media on an external hard disk instead of using USB flash drive or optical media?

I've been getting errors while creating the the recovery media on optical drive.


Answer:How do I create a recovery disk using external hard disk?


As far as I know it?s impossible to create an Toshiba image on the HDD?
You need to burn the image on the disk (DVD).


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My computer keeps refusing to start up. I have to re-install windows each time. Hard disk keeps making a "funny" noise. I have an 80gb hard drive and have used 40gb so far. I want to back up everything incase my hard drive fails. Could I backup to an external disk drive? would I need to install windows on the external drive. or is there a better way to save all my files, downloads, and software? When I bought the PC it came with software already installed and a recovery disk. But obviously I dont want restore to factory settings as I will loose everything. Any advice would be much appreciated.

Answer:backup from hard disk to external disk drive

You could use commercially available back up software like Ghost click here or Acronis click here

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I'm using WD Passport 1TB with 3.0 usb. When i connect it to my computer, it does not showed up at My Computer. I'd tried to assign a letter but an error poped out like this -> (see attachments)
Other things u guys might need to know, i've tried to uninstall the driver and install it back again, but it wont work. When i connect it to my computer, my external make a weird sound but not to fast, but have 2seconds interval. Then after some times making sounds like that, it became silent. The lights still working but after 2seconds interval, it goes off and lights again.
Any suggestions guys? Thank you so much for making some time to read my problem. Peace! =D

Answer:My external hard disk did not show up in My Computer

Hi sha37, Welcome to Seven forums.

First thing that comes to mind is to check disk. Follow this tutorial and perform a chkdsk. Disk Check

Tell us the output.

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my WESTERN DIGITAL hard disk was running smoothly and i can access all datas.....
but today 1 disconnected it and there after it is not showing on "my computer"...

bt d indicator light is on and it is rotatng insise......but cant access it ....

smbdy pls help me soon.......

Answer:external hard disk not showing in my computer

Can you provide a screenshot of disk management please?

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My computer stopped detecting the external hard disk suddenly. I tried locating the drive in disk management but it is not showing up there. Please advice. Thanks.

Answer:Computer can't detect external hard disk

Hi, Welcome to Sevenforums

Did you try connecting it to other available USB ports, and make sure the both side plugs are well fitted?


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Running Windows XP service pack 3 on AMD Sempron 3000+ Biostar board.

Formerly, we were running a 500-Gig external USB drive on this system for years without a problem. I don't remember its drive letter ever just disappearing. It may have happened; but, it was so rare I don't remember when it might have. That drive died so we replaced it.

New drive is a Western Digital 1.5-Terabyte in an Eagle brand enclosure. Problem is it keeps disappearing for no obvious reason. Restarting the computer does no good; but, power cycling the enclosure makes it work again 100% of the time on the first power-cycle try. We have tried the drive on both the USB add-in card with it being the only device on that two-port card and on the native main board USB ports and the result is the same.

We need for this thing to stay on-line as there is an automated scheduled backup that needs to run every day and sometimes twice a day.

Suggestions please.

Answer:External USB hard disk keeps disappearing from My Computer

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i have a 80gb internal hard disk since it was not sufficient i switched up to a 500gb hard disk so i want to know whether i can use my 80gb hard disk as an external hard disk
if so how please instruct me

Answer:how to change a internal hard disk to a external hard disk

Is the 80gb drive ide or sata?

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What is the difference of 3.5 external hard disk (e.g. WD My Book) vs a 3.5 internal hard disk fixed into an enclosure to work like an external hard disk?

Are both good to be use as an external drive to store backup?

What 3.5 enclosure is good?


Answer:3.5 external hard disk vs 3.5 internal hard disk with enclosure?

What do you mean fixed into an enclosure to work like an external drive? Are you referring to a My Book 3.0 VIA USB 3.0.... vs.... an internal SATA III SSD or HDD? Be a little more specific.

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I am running Windows 7 32 bit. I use Microsoft Security Essentials as my antivirus and keep Malwarebytes as a backup
I gave my external hard disk to friend and that was a big mistake. I plugged it back to my own PC and clicked on Open Folder to View Files.
All my folders in the hard disk were made into shortcuts. I went to Folder Options and unchecked Hide Protected Operating System Files.
Soon enough I found my data in hidden folders and two more hidden folders called 3535 and System Volume Information.
3535 has 2 files named g249.js and i28282.js
When I click on System Volume Informantion, it says Access is denied.
If I delete the 3535 folder it comes back within 5 seconds. I can delete all the shortcuts and the autorun file but they come back once i reconnect the externla hard disk.
Worst thing is it infects everything I plug in like my pen drive. I even formatted it but the 3535 folder and the shortcuts were there after formatting.
I did a full scan of my PC and external hard disk using both Security Essentials and mbam but no effect
Also I had to change the name of mbam.exe and dds.exe to run these programs. I think the virus is somehow trying to block these programs.
Here is the DDS log:
DDS (Ver_2012-11-20.01) - NTFS_x86
Internet Explorer: 10.0.9200.16537  BrowserJavaVersion: 10.17.2
Run by ACEr at 21:59:42 on 2013-05-06
Microsoft Windows 7 Professional   6.1.7601.1.1252.91.103... Read more

Answer:g249.js infected computer and external hard disk

Hello, Welcome to BleepingComputer.I'm nasdaq and will be helping you.If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps.===Search and delete the AdWare, PUP (Potentially Unwanted Program) installed on your computer.Please download AdwCleaner by Xplode onto your Desktop.Close all open programs and internet browsers.Double click on AdwCleaner.exe to run the tool.Click on Delete tab follow the prompts.A log file will automatically open after the scan has finished.Please post the content of that log file with your next answer.You can find the log file at C:\AdwCleaner[Rn].txt (n is a number).===--RogueKiller--Download & SAVE to your Desktop RogueKiller for 32bit or Roguekiller for 64bit Quit all programs that you may have started.Please disconnect any USB or external drives from the computer before you run this scan!For Vista or Windows 7, right-click and select "Run as Administrator to start"For Windows XP, double-click to start.Wait until Prescan has finished ...Then Click on "Scan" buttonWait until the Status box shows "Scan Finished"click on "delete"Wait until the Status box shows "Deleting Finished"Click on "Report" and copy/paste the content of the Notepad into your next reply.The log should be found in RKreport[1].txt on your DesktopExit/Close RogueKiller+Please paste the logs in your next reply, DO NOT ATTACH THEMLet me know what problem persists.

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I have a WD 456 GB hard disk, which I have been using since Feb'10. But now when I connect it to my USB port (Laptop Dell D630) , the "My Comp" hangs and I have to remove the disk. i have tried to change the wire of the HD but no effect.

The hard disk gets ON and the LED on the hard disk blinks like normal.

Please do suggest any possible solutions ..

And also suggest some data recovery software that works good.


Rohit Chopra

Answer:My computer hangs when I connect external hard disk?

Does the disk have an external power source, or is it just powered through USB?

Also, have you tried turning the laptop off, connecting the drive, and then turning the laptop on?

If the above does not work, test it on another computer, both with plugging it in while the computer is on, and if that does not work, plugging it in while off and turning it on.

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My 1 TB external HD was working fine in my PC until I connected it to a Mac, after that I can't see it in My Computer, I could only see it in Disk Management, I just want to know if there is anything I can do, can anyone tell me from the picture below if i lost all my files, if the HD is corrupt can I use one of those programs that recovers lost files, does anyone have any recommendation?

Answer:External HD in Disk Management

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Just as the tittle says, i got my laptop's disk out of it, conected to an external HDD adapter, came to my windows 8.1 desktop pc, copied about 203 gb of data to the disk, then i put the disk back to the laptop, windows Technical Preview launches and when i go to the folder that is supposed to be the files there is nothing. The disk still says "227 gb of space used" where 203gb are the files i just put there before and the rest is the sistem installation.
Due the importance of those 203gb files (personal photos, a lot of documents, school work, videos of my family, etc.) I need to get them back, Please help !!!

Answer:Used my Disk as External, copied files, got the disk back to computer, and i can not

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Hi all,

I'm getting quite desperate about this as my external hard disk has backups of all my photos, artwork, essays and whatnot since 2003!

I bought this external hard disk (Western Digital) late last year, and it's been working great until today. I normally use SyncBack to backup my files with no problems. So today when I plugged it in to make my usual weekly backups, the blue status indicator light was blinking as per normal. I realized that in My Computer the usual disk space indicator Vista shows was missing. When I double-clicked on the drive icon I got the error message "You need to format the disk A: before you can use it". I tried plugging in to all my USB ports to no avail.

Also, I noticed that when I plug it out it makes this sound like a hard disk shutting down (or a computer shutting down). This has never happened before. What do I do?

PS: Stuff I did recently - yesterday I installed a registry fix from the How-to Geek website for restoring the power icon in my taskbar.

Answer:Computer won't recognize external hard disk, funny sounds

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Ok, so I was formating my external HDD to a FAT32 and right after I deleted the volume in the disk management it disappeared in the Disk Management. I can't still see it in the device manager and am able to eject it. I also have restarted my computer a few times and gave a good amount of time in between. Any ideas?

Answer:Can't find my external HDD in Disk Management

It should be there. It probably only disappeared from the radar screen. Move the scroller (see picture) up and down.

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So i have been browsing for a few hours now trying to get this issue fixed but I have had no luck!

I have a Seagate 320gb external hardrive. I have had it for a few months now and has worked great every single time I used it. Now suddenly it is no longer recognized. (Windows 7)

I have tried doing a few things which i found throughout other topics but ran into a few problems.

The HD is not shown in My Computer nor does it show in Disk Management.
So I try it on a Vista machine and same results. It is not recognized anywhere not even in Device Manager.

I can hear the HD spin and the green light does turn on however it used to flash consistently and now just flashes once and then remains lit.

If anyone can give me some insight it would be much appreciated.

Answer:External HD not being recognized, not even in Disk Management

The external drive is bad...

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Not sure how or why, but if I use the Disk Management applet, it takes longer than it used to to just start up. The Volume list at the top of the panel appears reasonably soon, but the botto panel, with tiles for each drive that takes forever to appear. And even when it does, the scroll bar on the right side of the window is frozen.

How do i fix this?

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I got new Desktop recently, Lenovo K450e, and when I went to plug in my external HD, Seagate 500GB, it didn't show up in either My Computer or Disk Management and there are no exclamation points next to the drivers suggesting that I would need a driver update. I plugged it into other ports on my computer with no luck but when I plug it into my laptop it works fine. I have read so many different forums with no luck. My computer is a Windows 8.1 intel core I7 processer.

Thank you

Answer:External Hard drive not recognized in My Computer or Disk Managment but it is on my laptop

Make sure you update and apply all the Windows updates before trying to use this new computer. You can run Windows Update manually for this

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My WD Passport 320gb external drive is not recognised. When I plug it in the light comes on and i can hear the disk fine as normal. But it won't show up in either My Computer or Disk Management.

I've tried Re-Scanning is Disk Management, as well as every single USB port on my Toshiba Equiuim L40 laptop.

I can't assign it a drive letter because literally nothing shows up.

I was hoping to format this hard drive to FAT32 so I can backup my PS3 data before I upgrade it's hard drive. Any help much appreciated, and just to make it clear there is absolutely nothing on the drive I want to keep so it doesn't matter what is lost from it!

Many thanks to anyone who can help!!!!!!


(By the way this is my first time ever posting in a forum so bear with me please!)

Answer:External HDD won't show up in Disk Management or Explorer

hi there fellow uk man try this microsoft fix it from there site
Hardware devices are not working or are not detected in Windows go to link Hardware devices are not working or are not detected in Windows

What it fixes...

When you install a hardware device, it is not detected
Determine if your audio device is plugged in
Driver updates aren't automatically installed by Windows Update
You receive one of the following errors:
Your <Device Name> is currently disabled or turned off in Windows
Your <Device Name> has a driver problem and needs to be reinstalled
Windows has detected a problem with your <Device Name>, it is not working properly
There is no driver installed for your <Device Name>

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Have external SCSI 3TB RAID - need to get it properly configured in Disk Management to actually show up in "My Computer" as connected drive. Running Win2K Pro OS. RAID contains 8 - 500GB drives, and has been initialized. Disk management shows as: Disk 1 Dynamic 2047.99GB Online and Disk 2 Dynamic 1209.22GB Online, but both are Unallocated. (I changed them to Dynamic from Basic - was that right?)I want them set as RAID-5, but am not computer tech and don't know where to go from here and don't want to mess it up. Please advise!

Answer:Set RAID 5 external SCSI in Disk Management

To use RAID 5 on Windows 2000 Pro you will need a separate RAID controller. Do you have this? Windows 2000 Pro does not support software RAID 5. To implement software RAID 5 you would need a server OS.

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I have been trying to find an answer for hours on google and am throwing in the towel.

I have: HP Desktop xt963, Windows xp sp3, 1.2 ghz processor, 512 RAM, 2 internal WD 40gb HD (one ide and one sata), 1 external Hitachi HD (the problem). The external HD is connected to the system via a generic ide/sata cable adapter.

The external HD is first connected to power, the power turned on, the adapter cable plugged into the HD then plugged into a USB 2.0 recepticle on the computer. (The USB 2.0 was an add-on. The existing USB 1.0 was factory installed.)

At that point, a "new hardware" message appears preceded by the usual chiming sound. An icon saying "safely remove hardware" appears. In Device Manager, the HD is recognized and in Properties it says "device is working." However, the HD is not recognized in My Computer or in Device Management.and accordingly is useless to me

In the beginning, it did work off and on for a while, but lately I can't use it at all.

I have tried "uninstalling" in Device Manager and restarting the computer. Upon restart, the device shows up again in Device Manager (installed) but nothing else changes. I tried connecting via the original USB 1 but it didn't make any difference.

I connected the cable and HD to my wife's Dell laptop (Windows xp) via a USB 1.0 port and viola everything worked just fine.

It would seem (a) there's nothing wrong with the HD or cable adapter or power supply, (b) t... Read more

Answer:External HD Doesn't Show in Disk Management

I just discovered something. After you utilize "safely remove hardware" before disconnecting the HD, the next time you connect it it does not power up (the power light is on but you can't feel the disk spinning) until you hook up to the usb port).

Previously, I had not been using "safely remove hardware" at all so I'm guessing the disk was running when conneting to the usb and that's when it didn't work right. But when power is not running when you plug the cable into usb (and it wasn't just a moment ago) then eveything is normal (as it is right now).

At least I'm going to go on that assumption until proven wrong and you can consider this thread solved.

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I am experiencing problems as I try to extend dr O:\ 65GB of a portable HD to use all the unallocated space (9.77 GB) on my Disk 2.
Disk 2 also has dr M:\ @ 35GB.

My problem is the error message as seen in attachment #2.

I then made a Simple Volume and tried to extend O:\ but "extend" was grayed out and not offered. I then returned the 9.77 GB to an unallocated state. Everything is backed up so losing any data is not a likely risk.

I do not know what to do in Win and before I try to use cmd prompt I wanted to ask for advice.
I assume if I have to use cmd I will extend and the unallocated space will automatically be used up, correct?

The PC Magazine Vista book I have offers no help. The terminology is confusing me.

Any help is appreciated.
Regards, Mark..

Answer:external hd disk management extend problem

Hi Mark989. Welcome to BleepingComputer.Vista is not as good as Win7 for adjusting partitions so I would be inclined to use something like Partition Wizard which I have used successfully in the past.. As you are not booting from this drive, you can safely ignore the warning.In your case, what I would do is 1. Remove the new Drive N:. 2. Extend the M: drive into the spare space. 3. Shrink the M: drive into right hand side, leaving the unallocated space next to the O: drive, and then 4. Extend your O: drive.Do each of these tasks one at a time and reboot between each task. luck. Let us know how you get on.

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Windows XP sp2 wont boot from hard disk.

After much to do turns out my computer doesnt recognise the hard disk.

I have a seagate 500Gb SATA hard drive, its about a year old, the computer doesnt get hot in the slightest and it shouldnt be dead. I checked the wiring, as far as i can see, its all fine.

only conclusion i come to is that my hard disk is kaput which it shouldnt be. Can anyone give me any other possible solutions to try out before i cry and/or spend money on a new one? theres a lot of data on it i dont want to lose.

If not, ill plug it in to another computer to check, i havent done that yet because it will take me hours - i can only unscrew the hard drive from one side without rearranging the room.


Answer:Hard disk boot failure -> computer won't recognise hard disk

Is your Seagate the 7200.11 series?

We've been seeing a lot of harddrive issues layely that has nothing to do with the drive itself but bad SATA cables aas the cause. Do you have another one you can switch out?

When you say the computer doesn't recognize it we're talking the BIOS here, correct?

Another suggestion is what you have already suggested but I would "slave" it in antother system and see if you can access it that way.

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Yesterday, I started a download and kept the pc on with my Seagate FreeAgent GoFlex External HDD 1TB plugged in. After I woke up I realized that there was a power cut and the computer went off unexpectadly (I had no UPS or any backup system).And, I found that my Ext HDD was not seen in my computer anymore (It was working perfectly until before I went to bed).
In device manager, under 'Disks' it shows 'GoFlex Hard Disk', but in BIOS or Disk Manager there is no sign of this HDD.

I really need the data in the HDD badly. Please help me recover it.
P.S. I read somewhere that keeping the HDD in freezer might help and give a little more time. Is that true? Worth the risk?

Answer:External HDD gets detected in Device Manager but not Disk Manager or seen in 'My Computer'

Power outage probably killed something in the enclosure or its PSU. The drive in the enclosure is probably fine. I would remove the drive from the enclosure and put it in a dock or install it in a desktop computer before considering freezing it. Freezing is usually reserved for click of death drives, and a last ditch effort.

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I bought a brand new U12-43837 Ultra 500GB external hard drive but as soon as I hook it up to the computer, the computer recognizes the drive, installs the driver, makes the hardware insert sound, but the drive does not appear in My Computer, nor does it appear in Disk Management. A few threads on here say to do certain things with the drive in Disk Management i.e. change drive letter, but the drive doesn't even show up in Disk Management so I cannot do that. Where do I go from here?

Answer:brand new external drive not showing up (not even in disk management!)

From a search this looks like just an enclosure and does not come with a hard drive inside it already = sold separately :/

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Hi all, I am hoping someone would be able to help me out on this problem. I'm running Windows 7 Ultimate 64 bit.

Windows detects my external HDD but doesn't show up in My Computer. Drive is detected in Disk Management, indicated as "not initialized". When I try to initialize the drive, it gives me the following error,

"The request could not be performed because of an I/O device error"

What I've tried doing:Do a clean instll of windows - Don't work
Uninstall external HDD driver, turned off power, turn it back on again, reinstalled driver - don't work
Tested the same external HDD on another Windows 7 system - No problems, detected and able to access
Tried plugging on different ports - Don't work

After hours of searching through the web and reading forums, I realized that this is quite a commonly faced issue. Thank you.

Answer:Unable to initialize external HDD in Disk Management due to I/O error

Control panel -> Administrative tools -> Event Viewer

Click on the caret > next to WINDOWS LOGS. Then click on SYSTEM. There ought to be a traced event of some kind with a physical I/O error.

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Hi All,

I've recently ran into an almost identical problem that was described (but not resolved) in this thread.

In my case, the drive worked perfectly with my system and only recently stopped appearing in My Computer. Also, my drive is still visible and accessible on Windows XP but is not visible on my Windows 7.

I'd be grateful for any useful advice how to restore the functionlity of this drive on Windows 7.

Please let me know if you require any additional information to help resolve this issue.

Thank you!

Answer:Unable to initialize external HDD in Disk Management due to I/O error

Hello, tommythecat.
Is the external drive used much? Is it aging? Damaged (from moisture, shock [dropping] or misuse)?
If you can, back-up all the data to another HDD.
Connect the problematic HDD to the troublesome PC.
Open an administrative command prompt > type diskpart > type list disk.
Is the drive listed?

Cheers - Happy Holidays.

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I have a WD MyBook 3 TB external HDD. I can see the drive letter in Windows Explorer but the name I had for it is no longer there and the window freezes when trying to access it, disallowing viewing of any files. I was going to take a look at in through Disk Management, but when opening DiskMgmt with the hard drive plugged in the window never opens and reads 'Connecting to Virtual Disk Service'. When the hard drive is unplugged I can use Disk Management just fine.

The drive is able to be viewed in Device Manager. I tried uninstalling the drivers but this did not work.

I am currently running a "chkdsk /r" on the drive. It has been running for about 9 hours now and is 0% complete on verifying files and folders. (see image) Before it started this step I noticed it was back to normal in Windows Explorer, but I did not try to open the drive to view any folders. It also showed up in Disk Management as that was open in the background when I started the command.
I found this very odd, because once this step started it was back to the issues before.
Do you think the chkdsk is working properly? I can hear the disks spinning and the light is flashing like it is being used. I would like to preserve the 2 TB of data in use, but if it's not an option I would just like to be able to use the hard drive again.
Would quitting out of this cause damage?

The issue started after using my netgear r6300v2 ReadyShare feature. I used this in the past with success, but stopped... Read more

Answer:External HDD corrupting? Cannot view in Explorer or Disk Management

A problem I see in the picture is that it mentions "the type of file system is FAT32". The size of the drive is too large for FAT32 so would have to be formatted as NTFS but doing so will delete any files on it.

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well its blowing my mind...
im not able to do any thing in computer management-disk management page
my account is an administrator but format, extend and delete volume optiones are grayed (disabled) even when i want to shrink a drive ( not the one with the Vista installed on) i recive an error saying you are not allowed and access is denied .
[IMG]file:///C:/Users/Farzad/Desktop/Capture.JPG[/IMG]i dont understand whats the problem... can anyone of you folks help me?
there two pics attached below one is the error it self and the other one is the disk management snapshot.
thanks before answering

Answer:computer management-disk management problem

Hi farad4me

Windows is using this drive for page filing, DO NOT DELETE.

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Firstly please excuse me if I'm in the wrong place or broken any rules! Noob alert!

ok, I currently have two 2tb verbatim usb3 external HDD. one works perfectly and the other has recently started giving me BSOD for some strange reason. I tried to format the drive and that is when it all started. now whenever i power up the drive it crashes the pc straight away. Pc will not boot with drive turned on. The other 2tb drive works just fine. Dead drive? well I sent the drive to verbatim (seagate barracuda) under warrranty to be repaired and recieved it two days ago. I plugged it in, powered up and all was fine. I then went into disk management to format the drive to NTFS and bang....BSOD and drive is completely invisible and as soon as its powered on it crashes the pc. I already have no hair left so any help would be greatly appreciated.

Oh one more thing, before returning the drive to verbatim i tried it on another pc and had the same problem. I have been unable to try this with the new/supposedly fixed drive as yet.

Answer:External USB 3.0 drive causing BSOD -- can't see it in disk management or explorer

This may not be a external hard drive problem at all. Your minidumps point to a CRITICAL_OBJECT_TERMINATION

What are your computers specs, including power supply and memory specs? This may be related to not enough power to the PC's components

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I have two hard disks, one Seagate 120 GB one and another Maxtor d540x-4d
5400 rpm 40 GB UATA/100 drive. My problem is that the maxtor drive used to
work fine, but recently, it is recognized by BIOS and Device Manager in
Windows, but it is not shown by either the logical disk manager in disk
management or My computer. What is the problem? Any remedies? THanking you

Answer:Hard Disk recognized by bios, but not by My computer/Disk Manager

You need to partition and format a drive to see it as a drive letter in Windows.

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I have a 2,5" 500GB external hard-drive with a single partition (NTFS).
I can see it in the disk management utility (see attached screenshot) but it doesn't have a drive letter nor can't I assign one.

Attached to another PC running Windows XP it says "unknown partition" but also error-free and NTFS.

The problem could have been triggered by unplugging the harddrive without securely removing it.

Answer:Doesn't show external drive anymore but visible in the disk management

is it have files on that external hdd??

on Disk Mgmt, right click the offending disk.
Select Change drive letters and path.
Assign a drive letter.

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I have an external 15gb drive I'm trying to get some old files off of and I only have my laptop so I'm using an external enclosure. I can use it with other drives perfectly but I can't access the volumes from within my OS (Windows) on this drive.

Answer:External drive shows up in disk management but doesn't moutn a volume

Are you getting any error messages??

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Im experiencing the same problem here... 2 days ago my pc was working correctly but now when i plug in my usb device (any) i finds it, i instals, but i cant see it in My Computer... so i went to disk managment but its not there and also all hard drives dissapeared except my dvd-rom and an virtual dvd rom.... it seems pretty much like virus to me because i havent been making any changes to my pc in past 2 months and i have also weak antivirus protection (damn avast). any good ideas or find-outs are welcome Thank you. (and sry for my bad english)

Answer:Hard drives not in Disk Management

Hello Bandolero007 and Welcome to TSF...
Please start your own thread or I will ask Moderators to make you new thread...

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I loaded this from PCA February issue DVD, and registered OK.When I try to open the program I get the Message"Unknown Windows Version" Error Code 0x10094. I have uninstalled and reinstalled but it is still the same. I have contacted Paragon support but had no reply (I suspect that there is no support for this special edition)Anyone using it OK? I use Vista Home Premium.

Answer:Paragon Hard Disk Management

hi rawprawnJust installed and registered ,seems okIve resized a partition with no immediete side effects.But on xp home.There seems to be someone else from the forum who had the issue in january maybe they have had a responseclick here

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I've got 600GB HD (Rock mobile disk) that goes without saying need to be recuperated. It was working fine earlier this summer when I last accessed it. A few weeks ago, I plugged it in again and it gave me an I/O Device Error, read and unspecified error.

I have been researching a solution non stop and today when i plugged it in once again something worst happened, this time I see a External HD not Detected: Disk 1, Unknown, Not Initialized in Disk Management.

Can someone please help?

The irony... we get an external drive to protect our data and not loose it and then this happens

Answer:External HD not Detected: Disk 1, Unknown, Not Initialized

Try this to salvage what you can from it: Download MiniTool Power Data Recovery Free Edition - MajorGeeks
Do that before any attempts to repair.
If nothing, portable drives are even less reliable than stationary ones and it's interfaces are prone to malfunction.

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Well, I have a problem with my WD external disk P/N WDBAAUA0010HBK-01 (1TB)

The drive is detected as H Drive, but it said "H drive not accessible. The Parameter is incorrect."
I checked on MyComputer>Manage and I formatted disk as I read on other forums as a solution.
After formatting I didn't recognize any aprovements. As recommended I did a CHECKDISK, which I used TESTDISK.exe file from downloaded Zip File and here is what is says... Please check the attachment.

If you might help with any suggestions, PLEASE do.

The drive is still uder the goes very slow...

Thank you in advance

Answer:WD external disk problems, error detected

I added Computer Management opened file to see what it shows.

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My HP 15 Notebook PC is showing this ,Smart hard disk error, smart hard disk check detected an imminent failure

Answer:Smart hard disk error, the smart hard disk has detected an i...

> SMART hard disk error, SMART hard disk check detected an imminent failure. This is a very common question on this forum. For a definition of 'SMART', see: It is technology built-in to the disk-drive, to measure over 20 points about the "health" of your disk-drive.An example: overheating. Google-search for "download free SPECCY".Download, install, and run SPECCY, and expand the "Storage" section.Expand the "SMART" section to show all those measurements-- look for anything labelled WARNING or BAD.Tell us what you see. Your disk-drive is on its "last legs". Do not run "disk-intensive" tasks, such as "Disk Defragmenter". Before it completely fails, backup all your files onto an external disk-drive (or large-capacity USB memory-stick).Remember to include your "bookmarks" and your E-mail messages. Also, search on your computer for a program to create a "System Recovery Set".This "set" can be written to one 16GB USB memory-stick, or burnt to a few DVD-recordable disks. Or, did the manufacturer provide you this "set" on a few DVD disks? Take an inventory of what "free" programs are installed on your computer, e.g., Adobe Reader, Audacity, iTunes.Take an inventory of what "commercial" programs are installed on your computer, e.g., Microsoft Office, and find the "license-keys" for such software. Purchase a new disk-drive.Take your computer to a computer-store, for them to look at t... Read more

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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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