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Z540 will not boot. PXE-E61 error after installing Windows 10 prebuild to dual boot with Ubuntu

Question: Z540 will not boot. PXE-E61 error after installing Windows 10 prebuild to dual boot with Ubuntu

Z540 will not boot from Hd. PXE-E61 error after installing Windows 10 prebuild to dual boot with UbuntuError is PXE-E61 Media test failed, check cable is the error. It's driving me crazy. I can't use one click recovery and bios is useless as it has about ten total options none of which help. Was working fine running Linux but I can't do anything at this point. Any ideas? I'm not real techy but Ive tried what I thought might help and nothing is working and I need this laptop for college! Thanks for any help!

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Preferred Solution: Z540 will not boot. PXE-E61 error after installing Windows 10 prebuild to dual boot with Ubuntu

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.

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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: Z540 will not boot. PXE-E61 error after installing Windows 10 prebuild to dual boot with Ubuntu

tylerindyc1 wrote:Z540 will not boot from Hd. PXE-E61 error after installing Windows 10 prebuild to dual boot with UbuntuError is PXE-E61 Media test failed, check cable is the error. It's driving me crazy. I can't use one click recovery and bios is useless as it has about ten total options none of which help. Was working fine running Linux but I can't do anything at this point. Any ideas? I'm not real techy but Ive tried what I thought might help and nothing is working and I need this laptop for college! Thanks for any help!You may want to disable PXE boot to Lan option in the bios and check if the problem is still there or not. If yes, you may have to reinstall Win 10 again but kept that option in the bios disabled.

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I installed Ubuntu on the same hard drive as my Windows 7 (different partition ofcourse)

Now, even with windows boot manager, when I choose 'start windows' it writes 'windows is loading files' then reboots.

Can't use recovery options "repair your computer" off my windows cd since it keeps telling me I don't have the matching windows version (perhaps since ubuntu made some changes ro the MBR?).

Solutions I've tried:
1. Fixing MBR with a 'utility' boot-cd like hiren's. All it did was mess up ubuntu aswell so I had to reinstall ubuntu just to be able to boot.

2. Tried using boot-repair utility in Ubuntu - didn't work, same problem.

3. Tried burning rescue disc off an existing windows 7 computer. Same error - 'no matching windows found'

How can I reach window's rescue enviourment if it won't let me boot into it? I would try to use bootrec.exe but I can't get to it.

Please help? I really don't want to re-install windows 7 and lose all I have on that partition.

Answer:Windows won't boot after installing Ubuntu 14.04 for dual-boot.

First off, if you can boot into Ubuntu you can browse the Windows partition and copy your files to a USB HDD for backup, so you won't loose anything if you have to reinstall.
Then use EasyBCD boot manager to manage your OS's boot loader.

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After having installed Ubuntu 16.04 on my Lenovo IdeaPad U430p I'm not able to start Windows anymore. When I installed Ubuntu I used the setup to divide my Windows partition in two parts. One is still used for Windows and the other part is used for Ubuntu. Whenever I select Windows in Grub or use the EFI boot menu and select Windows it immediately goes into startup repair mode. When using the command line of startup repair I can see that all my files that are on the Windows partition are still there and everything looks fine to me. But still, so far I haven't found a solution. I've tried the automatic startup repair. I have tried to fix it with the bootrec command and rebuilt the bcd, which was also unsuccessful. I also tried to activate the boot log but the log is not even created. It seems that the system directly goes into startup repair without even starting to boot into windows. I'm kind of lost and don't really know what I could do to fix this. Does anybody have an idea how to fix this? Cheers,Bastian

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I want to upgrade Vista to Windows 7, but without disturbing my Ubuntu installation, which is dual boot with Vista. I would prefer to do a clean install of Windows 7 over Vista, which has had niggling little issues (I resolve them and new ones appear) ever since I bought the pc. I don't have the recovery discs for Vista (the ones you make when you buy a new system) as they went missing during a major move.

What is the best way to accomplish all the above? Also, from what I understand, a clean installation can be done with an upgrade version of Windows 7 as long as a previous version of Vista or XP is already on the machine? I am not terribly confident when it comes to doing things like this, so would appreciate any help I can get. Thanks.

Answer:Installing Windows 7 over Vista on dual boot with Ubuntu

Is your Ubuntu installation on a partition on the same hard disk or on a seperate one?

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Hello friends,

I am trying to make my new laptop hp- dv6 3174 dual boot with two operating systems Windows 7(which is preinstalled) and Ubuntu 10.10.
But after i install ubuntu, windows is getting erased. I tried repairing with system repair disc but not possible. Even if i put system repair disc it again ask to insert repair disc. And if i try to repair is with system image it replaces ubuntu with windows 7.
I asked some people here they are saying its issue with hp and not windows.
If anybody can solve this issue will be of gr8 help.

thank you

Answer:Dual boot problem while installing ubuntu 10.10 with windows 7 on hp

Please state it clearly, precisely, I mean.

Can you start Windows 7 now?

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My dell laptop is dell inspiron 14R with preinstalled windows 8.I want to install ubuntu 10.04 side by side. I switch to legacy boot option too.But could not install it through disk since during partition table creation, it is not showing any os that is preinstalled.Its imp for me to install ubuntu.
I even reinstalled window 8 in legacy mode and SATA option AHCI and then tried to install ubuntu.Even in that case, same problem exists.In case of ATA option, it even doesn,t show any partion to install ubuntu

Answer:Problem in installing dual boot ubuntu 10.04 and windows 8

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I have been struggling with boot issues ever since I decided to install ubuntu 14.04 LTS along Win 7 64 bits on myVAIO computer. To install it I chose "Something else" and resized the partition myself within the Ubuntu Installer. At first I got GRUB working and finding Win 7 but I could not start it. after this boot-info: Ubuntu Pastebin, I reinstalled GRUB in /sda using the following commands:

sudo update-grub
sudo grub-install /dev/sda
I got a seemingly quite common black screen from Windows Boot Manager saying this:

HTML Code:
File: \Boot\BCD

Status: 0xc000000f

Info: An error occured while attempting to read the boot configuration data.
From this message, I found out that I needed to rebuild the BCD and then reinstall GRUB to get a working dual boot.
I have created a Win 7 64 bits repair USB and using diskpart, I know I have 4 primary partitions:

1 - 100 MB - It seems to me that the boot files are supposed to be there. According to DISKPART, it s the volume C: and labeled "System Reserved"

2 - 140 GB - Windows is installed on this partition. According to DISKPART, there is no volume associated with this partition and it is hidden

3 - 81 GB - Ubuntu is installed on this partition

4 - 999MB is SWAP
Auto repair from Win 7 repair usb does not recognize my Windows 7 and does not work. Therefore, I have to work with the command prompt. I have tried most available tutorial on rebuilding BCDs. Basically, when I run al... Read more

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I managed to mess up my Windows 8.1 factory install almost as soon as I unboxed my Y50-70 with a couple of boneheaded moves. I was able to restore Windows from a downloaded USB image from Microsoft and the BIOS Windows key on the laptop. So far so good. The boot is on /dev/dsa1 as fat32. I have a suspicion that the system when installed was in a different location from the factory. The reason for my suspicion is the following. When trying to install Ubuntu 14.04 as a dual boot, Ubuntu cannot see the Windows OS. I have tried shrinking the Windows partition using the windows partition utility. I have also changed the unallocated space from shrinking to ext4 using GParted. Do I need to change the Windows boot location or change the BIOS boot type to get Ubuntu to see it should install alonside Windows?

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Hopefully I'm sticking this in the right forum, seems the closest to me at least. Sorry for the wall of text, but I'm trying to provide as much info as possible.

Anyway, I can't get Win 7 to boot after setting up dual boot (Ubuntu 10.10) on my GF's laptop. Been trying to solve this with help from the Ubuntu forums for several hours (I've been up all night) to no avail. I'll describe the problem and everything that has been tried so far. REALLY hoping somebody has an idea, I'm getting desperate.

I installed Ubuntu last night via the Live CD. Used the Live version to install alongside Windows and partition the drive, install Grub, etc. At reboot, after POST it would just go to a black screen with a flashing cursor. I could only run off the live CD. A forum member determined the Grub was trying to load from the wrong partition. We changed that and voila! Grub now loads properly. I can boot into Ubunto via Grub with zero problems. HOWEVER: when I try to boot into Win 7 from Grub, it just locks at the same flashing cursor of death screen. The 7 partition is till intact, I can see and access all the files on the 7 partition from within Ubuntu, however 7 will not boot. I have tried downloading and burning the Win 7 repair disk and doing all of the following:

Running the automatic Start Up Repair - several times. All it does is remove Grub, but booting still goes to the flashing cursor and I have to reinstall Grub again to be able to do anything after POST.

I have used the comm... Read more

Answer:Win 7 won;t boot after installing Ubuntu dual boot

Figured out how to move the boot flag from within Ubuntu. Had no effect at all. That exhausts my last remaining idea. ugh.

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Installed Windows 7 then installed Ubuntu 11.10 inside of Windows using Wubi. It is included in the new Ubuntu version. Now I cannot boot into Ubuntu from the Windows Boot Manager. I get error "Windows failed to start..A recent hardware or software change" wubildr.mbr is missing or corrupt status 0xc000000fWhen I select Windows 7 from the os boot changes it loads fine.

Answer:Dual boot Windows 7 and Ubuntu error

You would probably be better off posting this to the Linux forum since your Windows 7 is running fine and you will have people there who are more familiar with your problems. I have only a little Linux experience but none with this new wibildr, I have only installed as dual boot with Grub.You have to be a little bit crazy to keep you from going insane.

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Hi a couple of months ago my system crashed, windows 7 wouldnt boot, and I misplaced my installation disk. I had the problems several times since obtaining the computer several years ago. (Lenovo IDeaPad y450). I attributed the problem to what I believed was a bad hard disk, so I replaced it with a refurbished model.
I installed Ubungu 13.10, and it worked well ever since. I later located my win 7 disk and created a dual boot. Windows worked very well for several months until it stopped starting up last week. It would get to the black windows screen, where it says starting, and usually get stuck there. I would get fed up and turn it off after half an hour. Once it was as the screen and it later started the checkdisk program and found no errors. Another time it finally got into windows after a very long loading time, and it seemed to work fine, until the next time I restarted windows. It just went back to the loading windows screen.
I formatted the windows partition through GParted in Ubuntu, and tried the installation disk, and it would get stuck at 0% in the "expanding files" sequence. After an hour of hoping something would happen I got fed up and forced it off again.
Not sure what to do from this point. I have read other posts and it has led me to think that the issue could possibly be bad RAM or an issue with BIOS. But, Ubuntu has been working fine, while Windows has simply been freezing at any attempt of a startup.

Answer:Win 7 , Ubuntu dual boot, windows wont boot, startup disk doesnt help

It could be that the HDD has a bad sector in the Windows partition, or that the drive is actually failing. If there is a utility in Linux that tests memory, I would run it.

You could also use Memtest86+. It runs from a CD/DVD. Let it run for several passes to rule out bad RAM.

Memtest86+ - Advanced Memory Diagnostic Tool

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I wanted to set up Ubuntu on my computer, and followed the instructions in the first answer to this thread: dual boot - How to install Ubuntu alongside Windows 7/8 - Ask Ubuntu

As instructed, I created a logical partition using EaseUS software. I did this on my H:/ drive, a hard disk drive (whereas Windows 7 was installed on C:, and SSD).

After a mandatory reboot for the new partition changes, I did not immediately go to install Ubuntu, although I had Live USB to do so. Instead, if I remember properly, I booted into Windows to make sure everything was OK, but only to find out that some "Windows could not boot properly", giving me the option to 'Launch Startup Repair' - which I did, but to no avail. All it did was reported that some 2 system files were missing or corrupt.

I then installed Ubuntu on a third drive because I still needed it to perform some benchmarking. I did this using the 'install alongside windows 7' option.
But now that I don't need Ubuntu anymore, all I am interested in is getting back to Windows, while keeping all the files and programs intact.

How should I go about fixing this? Delete the logical partition on the other drive? I also have that Windows installation CD, and I'm thinking its repair options could be useful - but not having a whole lot of self-confidence, I don't know what steps exactly to take to preserve my files.

Any help is greatly appreciated!

Edit 1: I booted from the Windows installation disk just to see the options avail... Read more

Answer:Wanted to Dual Boot Win7 and Ubuntu - Windows Won't Boot Anymore

Hi I Am User,

Upon inserting the Windows installation disk you should be able to install a new Windows and be able to select Upgrade and it should create the Windows.old folder on the new Windows.


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Just curious, but is there option for me to enable uefi boot of my Windows 10 Professional installation on my HP xw6600 dual quad core E5450 machine which holds two Samsung 850 Pro SSD's, one for Windows 10 and the other completely for Ubuntu LTS 16.04.When possible,  how to go about it. How do I enable this option. Yours truly, 

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Hi there,Recently got a HP Pavilion g6 2213sa which came with Windows 8 (spit!) and this disgusting UEFI BIOS replacement (double spit!).Anyway, I need to dual boot Ubuntu on my system, so I installed Ubuntu. Normally, on a non UEFI system, a "Grub" bootloader installed by Linux would take over the startup process, and allow you to choose between either Windows 8 or Ubuntu on startup. However, on this computer, startup is just booting straight to Windows 8 despite the fact that Ubuntu and Grub IS installed.Now, upon startup, if I press F9, then I get to change the boot-device on a one-time basis. I can either select "OS Boot Manager", which loads Windows 8, or "Ubuntu" which loads the Grub bootloader which allows me to select Windows 8 or Ubuntu.However, when I press F10 to enter the Bios Setup with the intention of changing the boot order permanently, the Ubuntu option isn't there. Instead it has OS Manager, USB Disk, CD Rom, USB CD Rom and Network Card.Thanks, HP for, the crappily designed BIOS.Anyway, can anyone PLEASE provide me a way of changing the boot order so that GRUB is loaded first and NOT this crap Windows 8 rubbish (that I would happily bin if I didn't need it for work). 

Answer:Changing Boot Order on Dual Boot Windows 8 and Ubuntu

Looks like HP forums are just as useful as HP customer service and HP computers - i.e., not very useful at all.Problem solved though. Took the piece of crap back for a full refund and won't be buying HP again.Happy days.Bye.

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After deleting the partition on which Ubuntu was installed and enlarging the windows partition to fill the old space at the same time( stupid I know), I am unable to boot to Windows 7. All I see is a command line message that says Unknown File System and on the next line says Grub Rescue> with the option to input commands. After looking at this forum and Ubuntu forums I'm still unable to resolve the issue. I would like to be able to boot into windows 7.

Answer:Unable to boot Windows 7 after unistalling Ubuntu Dual boot

You'll have to restore your Master Boot Record. See this tutorial:

MBR - Restore Windows 7 Master Boot Record

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I used to use Windows for my work and It used to boot very fast. However, after dual boot with Ubuntu, my windows boot time became very long, it was annoying. I deleted Ubuntu, FORMATED ALL DRIVE, devided partitions, reinstalled Windows but it is still not better. FAST BOOT IS ENABLED, no start up app, no firewall, no antivirus.After windows logo 10 sec, boot is stucked in black screen 10 sec, and no background image in login screen (My laptop used to boot just in 8 sec before dual boot)

Answer:Windows boot slowly after dual boot Ubuntu

Hello buimanhthang,

Is your BIOS in UEFI or in Legacy mode? and with fast boot do you mean the option in Windows, the option in your bios (optional) or both?

Also, you could try to disable GUI boot. It basically gets rid of the Windows logo during the boot.
Open the run dialog with Windows key + R. then type in "msconfig" and activate "No GUI boot" inside the Boot tab.

Save changes and reboot. Let me know if the problem still exists.

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Answer:Cannot Boot Windows 7 after Uninstalling Ubuntu Dual-Boot

The Linux Grub messed you up. You can try to fix it with EasyBCD. Elseyou can make your C: partition active (with the bootable CD of Partition Wizard) and run repair/install with your installation disk 3 times. Reboot after each time.

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I have dual boot Ubuntu 11.04 and Windows 7 and now i cant boot Windows it says Windows can not start the installation process.

Answer:I have dual boot Ubuntu 11.04 and Windows 7 and now i cant boot Window

The best two ways of running Linux with Wondows on one Hd drive.
Dual Boot Windows 7 and Ubuntu
Linux - Install on Windows 7 Virtual Machine using VirtualBox

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I have dual boot Ubuntu 11.04 and Windows 7 and now i cant boot Windows it says Windows can not start the installation process.

Answer:I have dual boot Ubuntu 11.04 and Windows 7 and now i cant boot Window

Could you tell me exactly how you installed Ubuntu in your dual boot? Did you use Wubi Installer or install the OS on a separate partition?

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when I start up ,a screen comes up asking me which o.s. i want to run.I really just wanted to try ubuntu,have chosen win 7.How do i comepletely wipe from my Samsung r 540?

Answer:Uninstall ubuntu from laptop windows 7 & ubuntu dual boot

If you only wanted to try to Ubuntu, you should have made a "Live CD" to run Ubuntu from a CD instead of installing it.To get rid of Ubuntu, delete the partition that contains Ubuntu.Then remove the Ubuntu entry from the Windows "boot.ini" file like this:Start Windows 7.Click Start >> Run.Type msconfigClick 'OK'.Click the Boot tab.Highlight the Ubuntu entry.Click the Delete button.Click 'OK'Restart Windows.

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Well I did a stupid thing while repairing my boot loader system using EasyBCD on Windows. I selected Ubuntu as default bootloader and also selected the 'Skip the boot menu' option and applied those settings.
Now whenever I select Windows on the GRUB , it redirects to the GRUB leaving me no choice but Ubuntu.
I can access the windows drives but can't boot into it.
Is there anyway to solve this issue?
P.S.- I don't have recovery.

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Yikes! installing a second partition with Ubuntu is really hard next to Win7 on a m2 PCIe NVME.If you have been successful, your help would be greatly appreciated.I have encountered numerous problems installing Ubuntu 14.04 on a separate partition on a Precision 5510 with  1TB m2 PCIe NVME memory installed by Dell. 
I started out by creating a USB with the Universal USB Installer and the Ubuntu 14.04 installer.then followed these  encountered two problems. 1.) When booted to try Ubuntu and then selecting the install ubuntu icon, the installer does not recognize the m2 PCIe NVME drive and failing because the installer sees < 6GB of storage. 2.) The system bios configuration SATA operations must be changed from RAID On to ACHI - This corrupts the Factory Win 7 image installed by Dell and fixing it requires reversing the bios configuration change and running windows repair.This is dead simple with on any system with a SATA  hard drive.Has anyone successfully done this?Here is the really crazy thing. I need both Ubuntu for work and windows to communicate with the most of the world.  I chose to have Win7 factory installed believing that installing Ubuntu on a second partition of the m2 PCIe NVME drive would be simple. But that means Dell's support for Ubuntu and access to the Dell factory Ubuntu 14.04 image with drivers includi... Read more

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Not one forum has an appropriate solution to fix my issue. So here it is. I have an early 2011 Alienware m17xr3. Dual hard drive. Came with Windows 7, BIOS not UEFI. Dual boot with Ubuntu 15.04 and Windows 8.1 pro 64 bit. Windows is on first hard drive. Installed Windows first. Using GRUB2. Reversed boot order so GRUB (on Ubuntu hard drive) boots first so I have a boot loader. Both HDD on GPT. Select first (boot) partition on Windows HDD to boot. Get the above error code saying winload.exe missing or contains errors. Startup repair from install DVD fails. Try Boot Repair CD and doesn't fix. What is wrong? Getting rid of either or reformatting is a non starter. Want both and Windows requires far too much data to get back up. Help please. Everything for 8 is for UEFI not BIOS.

Answer:Error 0xc000000e on dual boot with Ubuntu

Unless the bios is capable of UEFI, you will never get any OS that tries to use that mode. They will all run in the regular bios mode.

As for dual boot with Linux distro's and Windows. There are guides out there on the Ubuntu Forums, Major Geeks forum, how to set a machine up to dual boot with Windows & Linux.

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Hi to everyone!
I'm trying to install XP, but i recieve this error and i am so frustrated.
Any help would be an oasis.

Answer:Error installing XP to dual boot with Windows 7

Your Windows 7 install is normal?

Looks like it is using the wrong encoding, or a problem with language.

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When I go to create the new partition in Windows 7 that I want to install XP on it creates it as a logical drive. How do I create a primary partition instead?

Answer:Error when installing XP to dual boot with Windows 7

Hello Todd, and welcome to Seven Forums.

You should still be able to install XP on a logical partition as well. Could you post a screenshot of your Disk Management so we can see how your drive layout is?

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Have a dell latitude d610 with a new 250G hard drive, bios only sees 137G.installed xp on the whole disk, works fine, then installed 9.10 from a cd that i have used on 6 other machines to dual boot.seems to install fine and tells me to reboot after removing disk.did this and get error "no such partition grub rescue"this has never happened before on any of my other installations.using xp disk removed partitions and reinstalled xp and 9.10 again same issue.using xp disk removed partitions again, created 2 partitions. then using 9.10 disk installed ubuntu which seemed fine, but when i restarted it as asked got the same message "no such partition grub rescue". there is currently no windows on the laptop.i am happy working with xp and commands to sort out problems. no knowledge of linux commands, but would like some help as i need ubuntuThanksmachine spec centrino 1.7Ghz, 2G ram, 250G harddrive

Answer:dual boot xp and ubuntu 10.04 grub rescue error

click here scroll about halfway don the page to read about rescue mode

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Hi everyone,
I have a Windows 7 OS installed on a SATA drive, A few days ago I installed Ubuntu 10.10 on an IDE drive. So far the only way is to switch the HDD drives in BIOS to boot up the one I want. Can anyone help me here.

Answer:Windows 7 and Ubuntu dual-boot

do you want to dual boot them off the same hard drive?
I do the same swapping thing for 7 and Vista, but I have to take the side off the case and switch the cables as my bios doesn't support multiple hard drives

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A few days ago, I could not access my Windows XP because of this error: "Windows XP could not start because the following file is missing or corrupt: \Windows\System32\Config\System". I was still able to access Ubuntu through the Dual boot startup menu. I accessed the Internet using Ubuntu to ask for help.(fourms) I tried all the suggestions for Recovery/Repair using my Windows XP installation disk and it appeared to have fixed my problem, but now it is asking me for my Administrator Password. I used or entered my Admin. Password, yet it won't let me in. When I ask for help, on the Internet, with that, everyone thinks I am trying to break in to someone else's computer and I get no responses or negative responses. It seems that I may have to do a clean Install of my Windows XP. My concern now is if the Dual Boot menu that directs me to either OS, will be wiped out when I do a clean install of Windows XP. BTW, Windows XP is solely on the C Drive and Ubuntu is on the D Drive. Each drive is 80GB. Any final suggestions before I do the clean install? As you can see, I am very hesitant in doing this. One final note, I was able to access some important files from my C Drive through Ubuntu and save them on my Flash Drive. Thanks.

Answer:Dual boot, Windows/Ubuntu

dual boot

After two days I finally solved my problem. No thanks to anyone on this forum.

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Hi! i am trying to get an old Panasonic toughbook (2 GB RAM ) going with a dual boot of the latest Ubuntu and windows 7 ... how exactly would i go about doing this on a completly blank new hardrive , thanks!!!

Answer:Ubuntu and Windows 7 dual boot ?

Dual Boot - Windows 7 and Linux

Where to install ubuntu in my system?

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Forum admin, please bump this if you feel it is in the wrong local:grin:

I recently tried loading Ubuntu onto a separate drive on my computer. All went well except for the boot process. Upon booting I no longer was brought to the normal dual boot screen, instead I now got what I beleive to be the Linux boot screen. From here I was able to still load windows, with a few more steps. What didn't like was the thought that Ubuntu took over. I did some research and figured I should reinstall it. I went to the Windows partition and formatted the section that had Ubuntu on it. Much to my surprise Ubuntu loaded itself on the same HDD as Windows 7. I formatted the section holding Ubuntu and restarted the system to this problem: grub loading error: unknown filesystem grub rescue So here I' stuck. The only ability I have is to get into bios and change my boot devive. I need help retrieving Windows.

Thank you, Tom

Answer:Windows 7 and Ubuntu dual boot

Hi Tom

Do you have a windows 7 repair disk? If you do, then boot from the disk (by using your computer Bios). Once the disk has loaded you can do a system restore as it restores your computer to an earlier point in time before your computer crashed.

A similar problem happened to my computer (with Linux Mint) and I used that method to restore windows 7.

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Ok so what i have is Windows 7 RC installed to my hard drive. I have a seperate partition which i would like to install Ubuntu on. Granted i could just go ahead and straight install but then i would be using the Grub bootloader and i don't want to.

What is my best option? That NeoGrub thing?

Answer:Windows 7 and Ubuntu Dual Boot

Don't forget that *nix uses more than one partition. It's been a real long time since I installed and used any version, but I think by default it uses one each for boot, system and paging. So you may want to consider that.

A possible way to do what you want might be to install Ubuntu, then boot to Windows 7 using Grub. Then use EasyBCD manage bootloader tab to reinstall the Vista bootlader.

I never tried to use that before, so if it doesn't work out, don't blame me. Get a second opinion about this, first.

Good luck. Final thought: I'd probably use an entirely different physical drive to install Ubuntu to, while the 7 drive was unplugged. Then you could just add Ubuntu to 7 bootloader later on.

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I have my Windows 8 installed in my C drive and it is the only OS I have as of now. I want to install Ubuntu 12.04 alongside Windows 8. But I have read so many negative things with regards to problems in booting after installing Ubuntu alongside Windows 8.

My Win 8 is installed in UEFI mode.

I am posting a screenshot of disk management
Will installing Ubuntu 12.04 cause any problems in booting?

Answer:How to dual boot Ubuntu 12.04 and Windows 8?

1) Windows 8 is not install in UEFI mode.

2) I would wait until the end of April to install Ubuntu, as version 13 will be out, which should work better with Windows 8.

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My PC has two hard drives. The first hard drive is running Windows XP Professional sp3, and the second hard drive has Ubuntu Linux 7.10 in a dual boot configuration. This means that I have something called Grub which causes a menu to come up so that I can select which of the two OS?s I want to load. The default is Windows XP Professional.

I recently got interested in running Microsoft Virtual PC 2007 and would like to set it up to run Ubuntu Linux. That way (1) I don?t have to worry about dual-booting anymore, and (2) I can gain access to my 160GB second hard drive from within Windows XP.

I did a little research on how to uninstall Ubuntu without harming Windows XP. But the problem I am running into is that there seems to be two ways of doing it:

(1) Go into the Win XP Recovery Console and run FIXMBR after which the Grub boot menu will go away and I can format my second hard drive. Or ?
(2) Go into the Win XP Recovery Console and run FIXBOOT, then FIXMBR after which the Grub boot menu will go away and I can format my second hard drive.

So which is it:

FIXMBR only?


FIXBOOT first, then FIXMBR?

Any help would be greatly appreciated.


Answer:Getting Rid of Windows/Ubuntu Dual Boot

I'm nearly positive it doesn't matter. As long as you uninstall Ubuntu first.

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Is it possible?

Answer:Dual boot Windows 10 and Ubuntu 16.04?

Once I had Windows 10 RTM dual booting with Linux 17.2. No issue whatsoever.

Here is a tutorial on dual booting Win 10 and Ubuntu 15.04

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Hello all,

First off, if this is in the wrong forum, I apologize.

OK what I am trying to do here is have my computer dual boot Windows 7 and Ubuntu 9.10. I have Windows 7 installed on my original hard disk. I bought a second hard disk last week and installed Ubuntu 9.10 on it. I am trying to get my computer to be able to boot both of them. I want to have the Windows 7 hdd be the primary boot with the Ubuntu hdd be the option. To get the Windows 7 hdd to work, I have to completely remove the Ubuntu hdd. If the Ubuntu hdd is installed, the Windows hdd will not boot. The computer will start up and 20-25 seconds later, it will restart and freeze at the "Starting Windows" screen. If I put the Ubuntu hdd in the main slot and the Windows hdd in the secondary, it will start right up and recognize that the Windows hdd is installed. I think that this is because, Windows wants to be the only OS and doesn't recognize others. How do I change this so that both hdds are bootable without physically removing one.

I have looked on both UbuntuForums, Windows website, and here and have found nothing that helps.

Answer:Windows 7 and Ubuntu dual boot?

Was the Windows hard drive connected when you installed Ubuntu?

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Hi I have been researching installing Ubuntu alongside Win 8.on my daughters laptop. I already boot Ubuntu & Win 7 on my desktop pc, but I have read some horror stories about installing Ubuntu with Win 8., mostly in regard to the uefi boot system in Win 8., as well as, its a laptop as opposed to desktop.

I have been told that i must enter the bios first and disable secure boot. Most of the tutorials I have read are very complex. Then i read a tutorial from this website, dated 2011 that appeared to be simple, and similar to my own Ubuntu/Win 7 installation, however it was dated 2011.

Dual Boot Windows 8 And Ubuntu

Posted November 21, 2011 ? 3:53 pm in: Windows 8 Guides

The only difference with my intended installation is that I will use a dvd as my Pc does not have a USB Boot option.
Please can anyone confirm that this Tutorial is valid and perhaps explain why so many other tutorials require BCD, disable secure boot plus many other things outside the scope of my experience. I would be most grateful.

I have even read that a mobo was destroyed by an incorrect installation and as this is my daughter's laptop i really dont want to have to buy her a new one. Thanks

Answer:dual boot windows 8 and ubuntu

Samsung Laptops Bricked by Booting Linux Using UEFI

How to dual boot with Ubuntu & Windows 8, with Secure Boot ENABLED.
Practical UEFI Secure Boot (Part 3 of 3) - YouTube

To Downgrade to MS Windows 7or install with these BIOS settings:

Fujitsu Manual:
Secure Boot

Originally Posted by Fujitsu

Advanced  Boot Configurations  Fast Boot : [Disabled]
Advanced  Boot Configurations  CSM : [Enabled]
Security  Secure Boot Configuration  Secure Boot Option : [Disabled]
To change these settings it is necessary that a Supervisor Password is set.

1) Set CSM to UEFI & Legacy.

2) For Noteboks, you will need to set a Password.

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Planning on installing windows 7 and ubuntu (Need it for school) dual boot on my Dell XPS M1330. I was going to follow this guide

Think that is a good way to do it or do you reccomend any other guides/methods of doing this

Answer:Want to set up Windows 7/ Ubuntu dual boot

If you do not need hardware acceleration for both OS, a virtual machine is easier to setup and to maintain.
virtualbox is a good free virtual machine.

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To date this is still a problem and no one has fixed it.  Its almost like I bought a product that still belongs to HP...  I haven't tried it yet but all the chat support people I talk to say that the super tech support may beable to help me, for a price... Even then its not promised that this laptop will beable to do what everyother computer is able to.

Answer:Re: How to dual boot ubuntu and windows 8?

@BurtMacklin If "by every other computer" you mean that every other laptop in existence is able to run Ubuntu, then you have been seriously misinformed.  I have been running Ubuntu versions on laptops and desktops for over ten years, and my personal experience, and long-term presence in reading posts in various Linux forums about laptop problems, is that laptops fair very poorly with Linux distros, including Ubuntu. I've gone through three different laptops myself, and NONE of them were able to run Linux distros well. The primary difficulty is using laptops in Linux is the nearly total lack of specialized drivers needed for the specialized hardware found in laptops. In desktops, this is not nearly so serious a problem because the hardware tends to be more generic and there is often the option of swapping in hardware for which there are Linux drivers.In addition, there are NEW problems trying to install Ubuntu on the UEFI based PCs, as this thread explains: The single BEST source of information in your case is the community forum for the distro that you are running. There, unlike here, you will find folks that use that distro every day, and are well-steeped in what is needed to workaround driver problems. Here is the link to the Ubuntu Forums: there deal with Ubuntu installations all the time and can provide the detailed assistance you need.Good Luck

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Is it possible?

Answer:Dual boot Windows 10 and Ubuntu 16.04?

Once I had Windows 10 RTM dual booting with Linux 17.2. No issue whatsoever.

Here is a tutorial on dual booting Win 10 and Ubuntu 15.04

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I want to use Windows 8 Pro and Ubuntu 13.04 on a single machine.How do I achieve this in a stable manner?
I want to use Ubuntu as a backup OS if Windows 8 ever crashes.Kindly suggest the best possible and optimum solution with detailed steps.

Answer:Need to dual boot Windows 8 Pro and Ubuntu

A very clear step by step guide here:

Hope this helps.


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how to dual boot windows 10 and ubuntu 15.04 easily i have had issues with the partitions anybody got any ideas

Answer:how to dual boot windows 10 and ubuntu

Hi pc helper 123456789,
I found a blog discussing about tip for dual-booting Windows 10 preview and Linux on a PC with UEFI firmware. It may be useful.
Tip for dual-booting Windows 10 preview and Linux on a PC with UEFI firmware
As ZigZag indicated, we also could try to run the ubuntu in the Hyper-V if we want to use the two systems in a machine.
NOTE: This response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you. Microsoft does not control these sites and has not tested any software or information found on these sites.
Best regards

Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

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So, I currently run Ubuntu as the sole OS on my Laptop. Using a G-Parted live CD I partitioned half of my disk space, the one half dedicated to running Ubuntu and the other half to Windows 7. I downloaded a torrent of Windows 7, one that I have used before with success (so one that I trust) and burned it to a DVD-RW at the slowest burning speed possible. I booted Windows 7 through the DVD and began to do a clean install of Windows 7 on this one Partition that I left completely empty for the new OS. Everything runs smoothly and I go through the set-up until suddenly the installation hangs at 0% when 'Expanding Windows Files'. I have exhausted pretty much all the possibilities of what could be going wrong to my knowledge - saying that however my knowledge isn't very extensive at all.

Could someone possible share some info on what I could be doing wrong? I'm desperate to get Windows 7 up and running on this computer so I can begin playing some games that are otherwise impossible or incredibly difficult to get working on Ubuntu, notably, as an avid player of the Football Manager series, the upcoming release of FM12.

If anyone can offer some sort of help/fix I'll be extremely grateful. Like seriously.

Answer:Trying to Dual-Boot Windows 7 and Ubuntu

The best two ways of running Linux with Wondows on one Hd drive.
Dual Boot Windows 7 and Ubuntu
Linux - Install on Windows 7 Virtual Machine using VirtualBox

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Hp envy 6 sleekbook 6z 1100 I have already disable the secure boot in the BIOS But I still cannot install the ubuntu 13.04 The installation was good and smooth But after reboot, there is no boot menu appear for me to choose which OS I want to boot I wonder if HP locked something......... or should I turn on Legacy support in the BIOS? But ubuntu 13.04 should support EFL BIOS I need Ubuntu for work!

View Solution.

Answer:How to dual boot ubuntu and windows 8?

Hi, The following tutorials will help: Regards.

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How come the thread has been marked solved?

There are several videos on youtube explaining how, here is just one:

How to Install Ubuntu 12.04 to Dual boot alongside Windows 8 - YouTube

Answer:How to dual boot windows 8 and ubuntu 12.04 LTS?

Someone was having trouble with this in another sub-board, I'll copy that video link over to them.

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Normally this is pretty easy but not in this case...

So my main OS is windows 7 professional, when windows 8 came out i freed up some hard drive space (about 50 gb since i wasn't really going to do much with it initially) and installed it in a dual boot setup. I was just going to screw around with it since i got it for free (gotta love dreamspark premium ).

My laptop started using the seeing windows 8 as my primary OS for some reason (even though win 7 was installed first). It didn't really bother me though since the win 8 bootloader looked pretty and worked well.

Didn't really like win8 and none of my drivers worked anyway so i set my default OS back to win 7 and kinda forgot it was there. My laptop also started using the win 7 bootloader again, which was a shame because it offers far less functionality but w/e.

Now I have to install ubuntu for some projects and I thought: perfect, I can simply use the partition used by windows 8!
So i load up ubuntu through my usb and start the installer but when i come to the partition selection screen it gives me 3 options:

1. install alongside windows 8 (why it only detects windows 8 I don't know...)
2. remove windows 8 and install ubuntu (would wipe entire disk, including the windows 7 partition)
3. do the complicated stuff yourself and create your own partitions.

I don't really want to screw around with the partitions yourself so I restart the laptop and go back in windows 7. I open up the disk manager ... Read more

Answer:windows 7 and ubuntu dual boot

If everything is back to normal, you should just run Ubuntu as a virtual machine. Unless there is some sort of compatibility issue, running a VM is easier then dual booting since you don't have to deal with any sort of boot loader issue.

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Recently I played around with dual booting Linux Mint on my system. I decided that I would delete it for the present as I have other things to focus on. However, after deleting partitions and fixing my MBR to only boot windows my UEFI BIOS still has instances of Ubuntu as a boot option. Just for the sake of cleaning my system I was hoping someone could help with this.

My Motherboard is an ASUS M5A97 LE R2.0 with a UEFI BIOS. I'll provide screenshots of what's happening below. (Images were flipped upon upload for some reason)

As you can see there are two ubuntu options for some reason.
I tried to see if BCDedit would allow me to delete these but they didn't show up in BCDedit
I'm not sure where else to look to delete these options in my BIOS.

Thanks in advance for any help

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i installed windows 7 on C:\ and i have XP on D:\
how do i boot into XP
i tried osl2000 but it said error reading disk press ctrl-alt-del

Answer:Unable to boot in XP after installing Windows 7 - Dual boot issue

Off topic:
where did you get win7 setup?? Is it available for public test??

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I installed Ubuntu 10.04 earlier today.

I have 6 HDs, and I installed Ubuntu on a 400GB partition on one of my REGULAR HD'S. My Windows installation is on my SSD.

Now, when I turn on my computer my Windows bootloader is showing, not GRUB. And if I press the "Start Windows Nornally" option - my Ubuntu boots. How do I fix this ?

I tried to repair my startup (using the Windows CD) without luck.

Thanks in advance!

Answer:Dual-boot: Windows 7 & Ubuntu - problem

Did you unplug the SSD when installing Ubuntu?

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So I dual booted my laptop with ubuntu a while back and had no problems. But when I tried to do the same for a friend I somehow managed to get to the point where i can no longer boot into windows(10). The ubuntu install in fine and usable but there's no boot menu that prompts which OS to boot into and the one time there was a boot menu windows wasn't there. Only an ubuntu/advanced ubuntu and 2 options called something to the effect of a memory test. I deleted 2 partitions in order to be able to dual boot ubuntu which was a recover partition and another partition with about 500mb of space. I'm assuming the latter was the partition with the windows boot on it. The large partition with his files on it is still there. What's the easiest way to get back into windows?

Answer:Can't boot windows dual booting ubuntu

Yep....never delete partitions with out knowing what they are and whats on them.

You may be able to recreate the MBR using some 3rd party partition software or using the install media to recreate the MBR.

NOTE: It's never a good idea to dual boot Winidows and Linux on the same the Grub overrides the MBR and you have to jump through hoops to boot into windows if you delete the Linux OS.

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I had windows installed on a disk (sda) and decided to install ubuntu 10.10 in another disk (sdb). Ubuntu installed Grub2 boot loader in sdb and both systems seem to work fine. Except windows hibernation (which worked normally before the Ubuntu installation). What happens is this:
1. If I set the BIOS to startup from disk sdb, GRUB comes out. When I select windows and try to hibernate, the screen goes black and after a couple of seconds the log in screen appears. So, I can not hibernate windows when I use GRUB. By the way, ubuntu hibernates normally.
2. If I set the BIOS to startup from disk sda, windows load (without GRUB of course) and hibernate actually works. But when I turn on the pc windows resuming is the only option. I can not activate the bbs popup and even if I set bios to boot from the other disk (sdb) the system seems to ignore me and resumes windows without displaying GRUB loader.
So, I can either hibernate windows but have to resume before I can use ubuntu or start windows using grub and not have the option to hibernate. From the above I get that windows 7 have a way of controlling the system's BIOS and prevent loading another os when windows are hibernated. I say windows 7 because my laptop has a similar dual boot (vista with ubuntu 9.04) and hibernation works for both systems and I can load whichever I want after that. I tried to find information about w7 hibernation and bios but I couldn't find anything clear enough.
I have also tried EasyBCD but it d... Read more

Answer:Hibernate windows 7 in dual boot with ubuntu

Oh boy this takes a while. to speed you along: powercfg.exe -energy in a windows 7 cmd.exe with admin rights - fixs as many problems as you can. if sleep works but hybrid sleep and hibernate don't and you boot with grub: set boot flag for the mini partition that windows made when it installed itself - note do NOT do this with windows disk manager as it will BREAK your system if you did do this use testdisk to recover (but believe me - you don't want to do that) Instead use parted gparted rescue disk or your linux partition and fdisk and set the boot flag. Still not hibernating (like me?) then you need to use the grub menu option that boots windows from the small partition usually /dev/sda1 (you set the boot flag didn't you?) Ok that should be it. Good luck

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I have a small query about this whole partitioning business. I'm trying to set up a partition so I can dual-boot Windows 7 and Ubuntu.

My computer came with a Dell Recovery partition and an OEM partition as well as the main C: drive, which are all primaries. I've created a new logical drive, which I've called Z:, with the idea being to install the Linux OS in that chunk of the drive.

My first question: First up, I've formatted it as "exFAT" - is this the same as FAT32?

Next question: can I divide this 'Z' into smaller chunks with different formats, or do they all have to be the same format? I was hoping to be able to format a small bit of the drive into a Linux filesystem so that both OSs can be kept entirely separate from each other, but leave the bulk of it as FAT so that I can see my files with both OSs. If this is not possible, what would be the best way to achieve the desired result?

Thanks for any help.


Answer:Set up a partition to dual-boot Windows 7 and Ubuntu

Hi McG, welcome to the forums.
I can't really answer your questions about Ubuntu, but I recommend you start by checking this thread at the Ubuntu forum. I would save it since you might come into those problems when trying to install Ubuntu in your disc.

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I have a dual boot system that had been working fine until yesterday.

Now when I go to boot Windows the grub menu shows

"Windows Recovery Environment (loader) (on /dev/sda3)"

This leads to a window splash screen that last for about 10 second and then I get a black screen and the system goes no further.

It would seem that grub information on how to find the windows loader has become corrupted.

Any ideas on how to solve this will be appreciated.

Answer:Dual Boot, Windows 10, Ubuntu Problem

Grub2 is what is used now. How to Configure the GRUB2 Boot Loaders Settings

The issue is that Windows will screw up Grub2, if you make changes.

When you change anything in Grub, you have to write it, so that the Linux Kernel understands what you are doing. You always have to run sudo update grub. Otherwise it does not take.

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I'm unable to use Headphones in Windows 8 but I can use it in ubuntu. This problem started after dual booting.

Answer:Can't use Headphones in Windows 8( dual boot with ubuntu)

Are speaker sounds working normally in Windows 8?Always pop back and let us know the outcome - thanks

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Hey everyone, Im really killin' myself over this one. I just recently added Ubuntu 10.04.1 to my Gateway laptop NV53. I set it up so they would be installed side by side, Ubuntu being the one newly installed. It came with Windows 7, and it would give me the choice to select which OS i wanted to load (It gave me the Ubuntu OS, there were two -- and there was the Windows 7, A Vista Loader, and two other load choices those being like partitions on the drive) but now, when I try and boot off the HDD, it says: error: no such partition.
grub rescue>

I dunno what to do and im tearing myself to pieces here, whado I do??

Answer:Windows 7/Ubuntu dual boot issue

You should have got a cheap external HDD to put Ubuntu on, i once had a problem like yours, i couldn't get back into windows after trying to dual boot with Ubuntu. i had to reformat my whole HDD.

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I have a dual boot system that had been working fine until yesterday.

Now when I go to boot Windows the grub menu shows

"Windows Recovery Environment (loader) (on /dev/sda3)"

This leads to a window splash screen that last for about 10 second and then I get a black screen and the system goes no further.

It would seem that grub information on how to find the windows loader has become corrupted.

Any ideas on how to solve this will be appreciated.

Answer:Dual Boot, Windows 10, Ubuntu Problem

Grub2 is what is used now. How to Configure the GRUB2 Boot Loaders Settings

The issue is that Windows will screw up Grub2, if you make changes.

When you change anything in Grub, you have to write it, so that the Linux Kernel understands what you are doing. You always have to run sudo update grub. Otherwise it does not take.

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I've recently installed Ubuntu as a dual system, i installed it on separate partition, now i have dual boot Ubuntu and windows 7... WHAT I WANT , how to uninstall Ubuntu without affecting W7 to return my system as it was ; Windows 7 only...

Answer:How to Uninstall Ubuntu from a Dual Boot Windows 7 PC

To Remove Linux take look at this post:
Error 0xc0000225 on boot

Remove Grub - Restore Windows 7

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I just re-installed Windows 10 while I had Ubuntu and now I cant access Ubuntu anymore. Someone suggested Easy BCD but my Ubuntu partition is of the ext4 file system and hence is inaccessible to my Windows. The only method I know is to reinstall Ubuntu but I really don't want to do that. Is there any way I can solve this? It seems Windows doesn't recognize the Ubuntu partition at all. Does Windows boot manager exist in Win 10? If so, how do I activate it?

Answer:Windows 10/ Ubuntu 16.04 dual boot unavailable

Got a bootable Ubuntu DVD or USB? then follow the instructions here RecoveringUbuntuAfterInstallingWindows - Community Help Wiki

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How to configurare windows 8 and ubuntu on your laptop but without dual boot Lenovo G50-30 without dual boot
Mod's Edit: System model added to front of Subject line to improve visibility / clarity

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I decided to dual boot ubuntu 13.04 with Windows 8. I had a dual boot setup before with Windows 7 and didn't have any problems.

Since this latest dual boot Ubuntu has been running fine however Windows 8 has become really sluggish. It now takes a few minutes to boot when before it was able to boot within sceconds. Once opening a program it crashes and freezes up the entire system, basically making windows unuasable.

There were no problems with windows 8 prior to the dual boot so I am not 100% sure why this is happening.

I backed my system up before install ubuntu so I can easily get everything back if I have to formate everything.

Answer:Ubuntu Windows 8 dual boot preformance

Could be any number of things. Running checkdisk on the 8 partition is worth a try.

Are you using Ubuntu Unity 13.04?

It works great for me.

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I have two hard drives and one is 15 gb and I have 14gb left, how would I install Ubuntu onto that drive, and then, if I install it right. How would I boot to it?

Answer:Wanting to dual-boot Windows XP and Ubuntu

boot from ur ubuntu cd and watch the magic.. i think it uses disk druid (maybe that was fedora) to patition the hard dive. once installed linux's GRUB becomes ur boot manager and u can make it do whatever u want

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ubuntu forums are no help with this at all, i keep getting told to come here. Wanting to remove the ubuntu partion and the grub boot manager and just have my windows again, need an easier way to do this. Do not have a windows disc, been reading around and there are some ways to just delete everything linux with out it effecting windows, just cant figure it out on my own.

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i have a rather powerful computer in the greater scheem of things... and i would like to dual boot from two separate drives, ubuntu linux, and windows 7. i am in need of thorough instruction! i halve found alot of people online asking about ubuntu, people reply talking about other OSs and saying it should help. also if anyone could tell me what toll this might take on my power supply or my ram to have 2 HDs running at once technicaly. please and thank you. Thor.

Answer:I NEED HELP to dual boot windows 7 and ubuntu on seperate HDs


The easiest way to do away with boot issues between separate Operating Systems (OS) is to use the BIOS one time boot menu to select which OS to boot at system startup, each motherboard has an individual hot-key to tap during system start-up to access this menu.

If you have 2 separate Hard Disk Drives (HDD) and have one OS installed to one HDD and you want to install another OS to the second HDD, disconnect the HDD with the first OS installed on it and leave only the HDD you want to install the second OS to connected.
Install the second OS to the connected HDD and when complete and the system is booting good, power down and reconnect the first HDD with the first OS on it.

This way the OSs will boot independently of each other and there will be no boot conflicts between the 2 separate OSs to have to sort later.

Then set the BIOS to boot the HDD / OS you want as default and if you want to start the other (new) OS you use the BIOS one-time boot menu to select that HDD / OS to start when the PC is started.Asus - F8
HP/Compaq - Esc
Sony - F2
Acer ? F12
Packard Bell
Gateway - F10
eMachnes - F10
Gigabyte ? F12
Toshiba - F12
Dell - F12

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Hello all. I am new to the forums and have been having a very annoying issue as of late. I currently have a machine installed with Windows 8 pro 64 bit installed on one Samsung 840 pro SSD. Works great. I recently added a second Crucial m4 SSD and would like to install Linux on it... I am having major issues doing so mainly because of UEFI... and when installing Linux it does not see Windows 8 installed on any drive therefore making it rather difficult to install both OSes. Any advice would be wonderful! I have searched Google quite a bit only to find the same issues but non relating to ssd drives. Thanks in advance!


Answer:Windows 8 dual boot ubuntu 12.10 on 2 ssd drives

Welcome to EightForums.

First you will need to DISABLE Secure Boot.

Originally Posted by theog

Reset BIOS to default, and reboot to BIOS make sure Secure Boot is disabled.
Make sure CSM is ENABLED, & set to UEFI boot.
NOTE: Check your manufacturer's uEFI BIOS manual for settings.

Secure boot: technical types spreading half-baked information

Linux distributions are making slow progress on implementing measures to ensure that their images available for download are bootable on hardware that has secure boot turned on.

Secure boot is a feature of the UEFI, the Unified Extensible Firmware Interface, a replacement for the BIOS.

Microsoft has implemented this feature on hardware certified for Windows 8 in a way that requires the exchange of cryptographic keys; since the company controls the key-signing authority, anyone who wants to create a bootable medium has to necessarily obtain a key from Redmond.

Misinformation is rife about secure boot, simply because people confuse UEFI with secure boot and think that support for the former means support for the latter. Many so-called technical types are as guilty as others of spreading wrong information.

mjg59 | Secure Boot distribution support

?Microsoft's real aim is to kill the aftermarket in used computers that have Win 8 installed by not allowin... Read more

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I just installed Ubuntu to make my computer dual boot with Windows 7. When the option in Ubuntu came up to install it along Windows 7, I selected it. Well, after the install my monitor pops up a box saying "Out of Range" and nothing comes up, then Ubuntu boots. I never get the option to boot Win7. If I hit a button while the monitor is out of range, nothing boots. What is my problem? Thanks

Answer:Windows 7 and Ubuntu Dual Boot Problems

I think that the Ubuntu boot loader has taken over and set itself as default (so it boots after the timeout period has expired), which may be fine, BUT, the resolution it has chosen for that display is not compatible with your monitors resolution settings, so the monitor just says out of range.
Do you have another monitor you can try, or an old CRT screen monitor, anything that might accept the resolution and display the screen and try another video port coming from the computer if available. I don't know how to go about changing the boot screen resolution.

If the dual boot screen is similar to Windows, when it gets to that pause where its waiting for any change to be made as far as which OS to boot to, press the down arrow key once and then hit enter and see if Windows 7 loads (and displays).

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I wanna install Ubuntu (dual boot) alongside Windows. Is it as simple as just booting from the Live CD, selecting install Ubuntu, making a partition from the hard drive and installing? Is that it? After Ubuntu get's installed, when I boot up the computer, will it give me the option to boot from Windows or Ubuntu?


Answer:Run Ubuntu 11 as dual boot alongside Windows


Yes that's the way but using separate HDDs to boot them separately would save you a bunch of head-aches later.

How to Dual Boot Windows 7 and Ubuntu

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Hello friends,

I would like to install Linux Ubuntu on my laptop alongside Windows using dual boot.
However, people keep telling me that it is not a good idea this to be done on a laptop because of driver comparability and stuff like that.

So is it OK if dual boot Ubuntu and Windows on a laptop or it is a terrible idea?

Best Regards

Answer:Dual boot Windows and Linux Ubuntu

I'm against multi-booting of any kind. I believe in keeping it simple, so if you want to play around with Ubuntu, especially if you are worried about compatibility, virtualize it. It's 100% compatible with VirtualBox.

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I have two hard drives on my computer, one for my OS and apps (C, and one for my data (D. I recently reformatted my C: drive, re-installing Windows 7. I want to set up a dual-boot system with Ubuntu 10.04.

The problem I am having is that the Ubuntu installer recognizes my D: drive but not the C:. The C: drive is currently partitioned as follows:

100 MB NTFS Primary System Reserved
449.59 GB NTFS Primary
146.48 GB Unallocated

I have searched all over the net for answers, but none of the solutions I have found work.

Any thoughts?

Answer:Can't Get a Dual-Boot Windows 7/Ubuntu Installation Going

You say, you have two HD Drive, therefore you have a Disk0 & a Disk1.

When installing Linux
1) Remove Disk0 with Windows 7.
2) Install Linux to Disk1
3) Replace Disk0.
4) Use the one time boot menu to boot the OS's.

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I'm not great with the inner workings of computers, but I need to get a dual boot of ubuntu on my lenovo edge 15 which already has windows 10 on it. I've partitioned space for it and I've got a bootable usb drive with ubuntu. I disabled the safe boot option in BIOS, which finally got the computer to recognize the usb, but when I try to boot it the computer defaults back to windows 10, and I'm not sure what to do. I've read that enabling legacy mode could fix it, but I'm worried I may break something important or be unable to boot windows 10 afterward. Any advice?

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I need to install Ubuntu Linux 12.04 on my system for my college projects but I don't want to remove Windows 8 either ..... People are saying that I can't dual boot Win 8 with Ubuntu as 8 has UEFI secure boot enabled !! So , is there any workaround ?? your suggestions will really help me ....

Answer:Dual Boot Windows 8 with Ubuntu Linux

You might consider running Ubuntu as a hyper-v VM in the meantime until you figure out if dual booting is possible, then you won't even have to reboot its just always available

I'll agree the UEFI can be a pain for non-windows o/S's. The "For Your Own Protection&#8482;" b.s. that they try to excuse this situation with is just that - b.s., since the side effect of making is difficult or impossible for people to run other OS's besides Windows is too convenient for MS to be an unintended consequence and in practical use translates to little more than a lock keeping the honest out, all I can say is good luck.

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Ok so I am running two operating systems at the moment: Windows 7 Ultimate 64x and Ubuntu Linux 9.10

I have them both in my dual boot menu, but I have a question as to how to organize them.

I recently visited this thread: Dual-Boot Windows 7 64-bit and 32-bit

...and they were basically explaining how to set your default boot OS to Windows 7. Well, I kinda have the same problem, except for when I follow the instructions on that thread, I get to the part where it tells you how to set it to default, but the only OS that shows up is Windows 7. It does not show any sign of Ubuntu whatsoever. Is it because I have to have a WINDOWS OS or what? But I would like to organize my boot menu to where it highlights Windows 7 as the first boot option rather than Ubuntu because I want Windows 7 to be the first OS on the list. Any help on how to make that happen, if possible?

Thanks for the great support!


Answer:Windows 7/Ubuntu 9.10 Dual Boot Question

Would you want to do it using the command line options, or download EasyBCD?

For now, open an administrative command prompt and type:

This will show you what the boot store looks like. Type bcdedit /? and you can see some of the commands to use to manipulate the store. Probably the first thing you might want to do in make a backup copy of the store

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Hello people of 7forums! I am new here and I have a very interesting question.
Okay, so when I boot Ubuntu 14.04.2 x64 from my USB stick, it doesn't detect Windows 7!
I have tried to convert my disk to basic, but I don't seem to have an option for it so I guess I already have a basic one! My computer is custom built so it is NOT UEFI based. When I open Disk Management in Windows 7, there's a green box around my C drive. People have told me that it's because it's a logical partition and I have more than 4 primary, which is wrong. I have 1 (System reserved) which is primary, 2 unallocated for Ubuntu 14.04.2 and my C drive which apparently is the "extended partition". Is this why Ubuntu is not recognizing my Windows 7 install? I would greatly appreciate any help!

Thanks, Jason.

Answer:Windows 7 and Ubuntu 14.04 Dual boot problems

Are you sure Ubuntu mount NTFS partitions automatically? I have seen some Linux distributions that doesn't do this.

(my Linux is basic) You can try in terminal window: (9 commands to check hard disk partitions and disk space on Linux)

fdisk -l
Then mount the proper partition (the command is an example, exchange sda2 with the correct device number, the bold part is the name under which the partition will be mounted, you can change it):

mount -t ntfs /dev/sda2 /mnt/windows -o ro
The above will mount the partition in read-only mode.

To mount with read-write support:

ntfs-3g /dev/sdd1 /mnt/backup

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Sorry guys if this is in the wrong forum, but since XP is my primary operating system I thought I'd start here. Here's the problem: Yesterday I decided to install Ubuntu on my PC to where I could dual-boot into either Windows or Ubuntu. Well, the installation went fine, but now when I boot up it gives me the option of booting Windows or Ubuntu (this IS what I wanted). Only thing is that it automatically highlights "Ubuntu" instead of Windows and if I don't choose Windows in 5 seconds it boots Ubuntu. Is there any way that I can move "Windows" to the top of the list so that if I don't choose anything, it'll automatically load Windows XP?

Answer:Windows XP Dual-Boot w/ Ubuntu Problem

How did you install Ubuntu?

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Okay, so I've spent the last couple hours researching how to remove my ubuntu partition from a multi-OS boot with Windows 7 and Vista ... still not convinced of an exact method or strategy. I need the space, but am more afraid of losing all my data and having to reformat and reinstall Windows. Yes, my data is backed up, but it's just the hassle of having to reinstall apps and shortcuts and every single little thing I've tweaked (especially the registry) in the past year. Does anyone know of a full proof method to uninstall and remove this ubuntu/linux partition? Does the fact the i installed Windows 7 after Ubuntu (laptop came with Vista, then installed Ubuntu to dual boot, then recently got 7) change anything ... or the fact that Windows 7 is listed as my default OS? Until i know for sure, i guess I'm just gonna have to leave it there ... any help would be greatly appreciated. I knew that grub was gonna come back and kick me in the ass ...
Vista Home Premium
Ubuntu 9.04
Windows 7 Professional


Answer:removing Ubuntu in dual boot with Windows 7

So you have a triple-boot? Vista, Ubuntu, and 7?Do this for me while inside Windows 7:in the Start Menu search, type this and hit Enter:msconfigOnce on the "Boot" tab, take a screenshot and post it here.

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My computer has two OS: MS-Windows and Ubuntu.
Also, my computer has an external hard drive that contains windows' exe files.
Windows has Norton Security.
Usually I use Ubuntu.

Do I need antivirus for Ubuntu?
I wonder that some of malware or antivirus may be copied to external hard drive and windows partition when I use ubuntu without my knowing.

Answer:Do Ubuntu & Windows dual boot need antivirus?

You do not need antivirus for Ubuntu.

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I have recently installed Ubuntu 14.04Lts in dual boot on my second drive, but since then I am unable to boot into windows 7 on my first drive. Ubuntu is installed in UEFI like Windows. In my BIOS, I have the two options for my first drive( ubuntu and Windows Boot Manager), Ubuntu works fine but when I select Windows Boot Manager I get error :

Status : 0xc0000225
Info: A required device isn't connected or can't be accessed.

When I boot into Ubuntu, I got 3 entries in my GRUB menu : Windows UEFI bootmgfw.efi, Windows Boot UEFI loader and Windows Boot Manager(on /dev/sda1)
They all give me the same error when I select them :

file : \windows\system32\winload.efi
status : 0xc0000001
info : The application or operating system couldn't be loaded because a required file is missing or contains errors.

I have tried booting in UEFI on a windows 7 installation disk and running startup repairs, but it failed in System files integrity check and repair with failed-error code 0x490.

Can anyone help?


Answer:Dual boot with Ubuntu 14.04Lts can't boot into windows7

Can you please post a screenshot of the menu you have when you boot into the installation disk?

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I am aiming to install latest version of Ubuntu (v13?) alongside the original Win XP Home OS on the C drive of my ageing desktop computer - mainly to see how Ubuntu/Linux works as I have no experience of this OS.
I want to make sure I know EXACTLY what to do, and have looked at various step by step guides and how-to videos. But I would welcome advice on a specific point - with apologies to those who think the answer is too obvious to need explaining!
The main steps are clear:
1) download Ubuntu and burn .iso to a disk or USB stick
2) back up, defrag, and chkdisk your existing C drive
3) partition the C drive to create a separate space for Ubuntu - either by using third party software like EaseUS or GParted, or when prompted during Ubuntu installation
4) amend boot menu to boot from CDROM or USB stick (whatever the Ubuntu .iso is on) rather than the hard drive.
5) put Ubuntu .iso disk into CDROM drive (or USB into slot) and restart
6) follow steps for Ubuntu install
..... and if it all works, Ubuntu installs on to the "new" partition, then when you restart every time thereafter, a "dual boot" menu (is this the so-called GRUB menu from Ubuntu?) comes up showing the two OSs and giving the option to choose which to boot from.
7) remove .iso disk from CDROM drive (or unplug USB) and away you go.
All seems fine in theory. But being logical, one thing bothers me. At step (4), before loading and installing Ubuntu, I will have changed the boot order in the boot men... Read more

Answer:Dual boot Win XP and Ubuntu - setting the boot menu?

OK, there's a few misconceptions here to clarify.
Starting with the boot order.
You set the boot order in your computer BIOS, telling it to first boot from your CD/DVD drive (or USB). Once this is done, the BIOS will look for whatever you've selected first, but if it doesn't find a CD/DVD in the drive, it will look at whatever you have set next - say your hard drive for example. It wouldn't matter in that scenario if you never changed the boot order back, as it will check for each device in turn according to whatever you've set. Normally there are a minimum of three options for the boot order, so you could set as follows: CD/DVD, hard drive, USB. Note, not all BIOS's will have the option to boot from a USB stick. Older ones probably won't.
Having said all that, it doesn't matter which operating system you have installed, the BIOS is ALWAYS available at boot-up PRIOR to the operating system loading. You need to look at your first boot screen to find which key to access it, but it's often Delete.
When you install Ubuntu (or any other mainstream Linux distribution), it will set up a dual boot option for you. GRUB (Grand Unified Bootloader), is the piece of software that takes care of that for you. It will overwrite your hard drives MBR. That's not a problem in itself, but just be aware, if you later remove Ubuntu, you won't get back into XP, without using your XP disc to write a new MBR. This is because the GRUB files reside in Ubuntu.
Two further things I should mention.
You do... Read more

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I have Vista installed on my "play" puter. Installed Ubuntu using most of the defaults. It re-arrainged my single 80G harddrive, left vista intact and ubuntu installed clean.
Grub splash screen shows some ubuntu options, it also shows vista.
Ubuntu boots fine. If I select vista the boot hangs. Tried to boot vista in safe mode and the last thing the log shows is "/windows/system32/drivers/crcdisk.sys"

Vista booted ok before I installed ubuntu

Any idea what is going on


Answer:Dual boot -- vista wont boot ubuntu will

Yeah I Think windows dosen't like being dual booted it has some protection or something. But found a page to help :

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I have Asus laptop with OEM Win7 HomeP 64bit on it, I installed Ubuntu 12.04 along side with Win7, didn't know that Ubuntu will be the main boot, I used Ubuntu 11.10 a year a go and Windows was my main boot, I tired several way to retrieve Win7 as main boot but didn't work.

I tried to fully recover Windows, but when finished I get black screen with "getgrub error"
now recovery doesn't work any more.

I want to get rid of Ubuntu for ever, how? without losing my genuine Win7

Answer:Dual Boot problem, Ubuntu is the main boot

Hello, Mesh F90 and welcome to Seven Forums.

First you to boot to Ubuntu 12.04 and follow this :

1. Open your Terminal.
2. Type grep menuentry /boot/grub/grub.cfg
3. You will got something like :
menuentry "Windows 7 (loader) (on /dev/sda1)" {
You will got other lines but you need this, this is last one.
4. Remember this quotes for Windows 7 (ex . "Windows 7 (loader) (on /dev/sda1)") (DON'T FORGOT quotes!!!) you will need it later.
5. In Terminal type this : sudo nano -B /etc/default/grub
6. You will got this :

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.

GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
.... you will have more ....

7. Change GRUB_DEFAULT to value for Windows 7 from menuentry (you remembered it ) (ex. GRUB_DEFAULT="Windows 7 (loader) (on /dev/sda1)") (DON'T FORGET quotes).
8. Press CTRL+X and type "y" (without quotes) to save it.
9. Important step! Type in your terminal : sudo update-grub
to save your changes

That is all and Windows 7 will be default now.


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I installed opensuse 12.1 on dual boot along with my other windows 7 installation. Installation of opensuse is successful and i can use it. But when I tried to use windows 7 on grub, it says bootmgr is missing. I've already encountered this problem a long time ago so i tried to use bootrec /fixmbr, bootrec /rebuildbcd and bootrec /fixboot in the recovery console in the windows 7 DVD. Rebuildbcd and fixboot did not work and it said something like it cannot find my windows installation. I also tried bootrec /scanos, it returned a windows installation on D:\Windows but my windows is in drive C. I think this has something to do with me messing up the active partition in disk management a month ago but i already fixed it by setting the active partition to the system reserved partition. Only fixmbr is successful, but now i can't boot on any OS because it says: Missing operating system.

I also tried bcdboot C:\Windows but it failed with a message that goes like: Failure when attempting to copy boot information...

Oh, and I also tried changing my /boot/grub/menu.lst settings but still, it didn't work.

I just need to boot in my windows OS please..

Can anyone enlighten me?


Answer:Cannot boot windows 7 after installing opensuse 12.1 on dual boot

Hello -
Uninstall opensuse 12.1 first - See if your Windows O/S will boot -
Reinstall opensuse 12.1 again, and then see if your Windows O/S will now boot -

If it will not boot please stop trying to alter your registry as this may also be causing the problem

Just an idea -

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Hi,I'm trying to set up a dual boot system (Windows XP/Ubuntu 8.04) on a new T61p but am experiencing some difficulties doing so.The Windows XP installation works just fine right after a fresh install, but unfortunately stops working after the Ubuntu installation.I started with the XP installation and continued with Ubuntu. Rebooting the system then (when the Ubuntu installation is done) provides me with a proper list of boot-options to choose from. Booting into Ubuntu works, however a couple of seconds into the XP startup screen I get an UNMOUNTABLE_BOOT_VOLUME bluescreen.Partitions on the system are:1. WinXP (NTFS, primary)2. swap3. /boot (ext3, primary)4. Ubuntu / (ext3, primary)5. Ubuntu /home (ext3, logical)Several forum posts I stumbled upon suggested different solutions for the problem, so I tried fixmbr and fixboot in the Windows Recovery Console, ntfsfix, chkdsk /r, everything without success. fixboot couldn't even find the partition, checkdisk found 'at least one problem that cannot be resolved' and ntfsfix didn't have any effect at all.Has anyone encountered similar problems? At this point I'm grateful for even the slightest hint that could point me towards a solution for the problem.Thanks!

Answer:UNMOUNTABLE_BOOT_VOLUME after Ubuntu installation on a T61p (XP/Ubuntu dual boot)

Just received a laptop back from Lenovo. Same error Unmountable_Boot_Volume. Not sure if this will help but under BIOS/Config/SATA. Change the mode from compatibility to AHCI. Reboot and your OS should fire right up.  Thank you.

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Acer Desktop PC Model: AM1610
sis ethernet adapter
webstar dpx 2000 series cable modem

After setting up a dual boot system successfully,
Vista connects to internet via ethernet, Ubuntu does not.

sis ethernet driver is updated to latest version

I can access the internet from Ubuntu however, after shutting down the pc, unplugging the power cord, removing the cmos battery and reinstalling. I reinsert the power cord and boot up as normal into Ubuntu, and have full access to internet.

Simply removing/reinserting ethernet cord, removing/reinserting pc or cable modem power cord, or resetting cable modem, does not work.

I am asking if there is a solution as to where I can log off Vista and restart pc into Ubuntu and have internet access automatically, bypassing all these steps I've explained?

After perusing multiple forums where people have described similar if not same issues, I've yet to find a solution to this.

I ran ipconfig in Vista and have the results. I ran ifconfig in Ubuntu 9.10 and have the results.

As these results may contain information that can present a vulnerability regarding system/ip identification, I have omitted them here.

If needed, I will respond via personal message with the contents.

Thank you in advance for your continued contributions in aiding the computer world "handicapped".

Answer:Dual Boot Vista and Ubuntu 9.10: No Internet Connection in Ubuntu

Ubu 9.10 has known issues

If you are using Ubuntu 9.10, it has known issues with the built-in Network Manager and DSL modems (and presumably Cable modems as well)..

Currently, there is no fix (short of going back to 8.10 or hoping it is fixed in Ubu10 due out in April (iirc). Sorry.

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I set up a dual boot of Ubuntu and Windows 7 on my lenovo u330 laptop a couple months ago and everything was working fine. That was till I found a problem with the wireless when switching from Ubuntu over to 7. I found that if I left the wireless off in Ubuntu and restart to 7, the wireless is completely disconnected in 7. Later I learned that if I enabled the wireless in Ubuntu and restart into 7, the wireless works fine.

Now, the major problem is that the Ubuntu 11.04 update completely screwed the Ubuntu installation. The graphics nor the internet worked after the update so basically I'm stuck with the wireless off in Windows 7. Also, I deleted the Ubuntu partition to possibly reinstall it but another problem is that I got the install from a friend (who isn't around). Someone told me that Ubuntu actually shuts down the wireless card at the hardware level.

Does anyone know a low level way of enabling the wireless adapter in Windows 7? ipconfig gives me the "Media disconnected" message on all of the adapter connections. I have already tried reinstalling wireless drivers as well and none of the Windows 7 troubleshooting apps help whatsoever.

Answer:Dual boot Ubuntu and Windows 7 wireless problem

In the bios settings on most modern computers there is an option to enable or disable the wireless adapter.

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So, I have like a laptop with installed windows 10 first then installed ubuntu 14.04 LTS alongside windows.

ubuntu grub boots up asking me for boot options each time i restart.

So if I want to clean install windows 10 while ubuntu is still installed will it affect ubuntu and its data?.

I use ubuntu for work and windows when i am home.

I have upgraded windows 10 using windows update but now i feel like doing clean install of the anniversary update but afraid of losing ubuntu and work data or failure of ubuntu booting after reinstalling windows 10.

Can anyone suggest ideas or solutions?.

Thank you.

Answer:Is it possible to clean install windows 10 in dual boot with ubuntu?

Sure you can - no problem at all. Just boot from USB and pick the C partition when it asks you where to install Windows. You could (and I did) format the partition at this point. Make sure also that your WinRE recovery partition (if you have one) is big enough (500MB).

I dual boot with OSX and Windows and did a clean install of 1607 like that and it worked fine. It didn't touch the other OS at all. It did disable my bootloader (I use rEFInd not grub) but that happens every time I update either OS and it is just a matter of re-registering it.

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Will dual boot windows 10 1511 and ubuntu 16.04 be affected by anniversary update.


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Is it possible to dual boot windows 7 and ubuntu, with ubuntu on a external hard drive? I can connect my external hard drive via USB 2.0, USB 3.0 or E-SATA. I want windows 7 as my main OS. Could someone please help?

Answer:dual boot windows 7 and ubuntu on external harddrive

You need to enter your BIOS and change the boot priority to that external drive.

Your BIOS may allow you to enter a boot menu during startup which makes it a lot simpler.

While your PC is turning on it will flash with your PC vendors logo, at the bottom of this screen it should say press F2/Del to enter the BIOS or something similar.

BIOSes vary greatly from PC to PC so I can't really give you anything more than general advice but I'll try my best.

If you need any more help or explanation just ask.


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Ive read some dual boot threads but the three that ive seen on here started in 2009
so i wanted to make a new thread instead of asking on those (if anyone was asking)

ask u can see on my computer specs i have 2 500gb hdd
currently i am uncomfortable installing lion on to the data drive or the c drive
since i do not have the confidence about doing this

but i have a 40gb hdd lying around and want to install onto it and dualboot my windows 7 and lion

i would prefer a detailed guide thank u
starting from the beginning so i know i didnt miss anything since im a slight noob
ive done ubuntu, 8 and xp installations on virtual box but i want to do the hardcore mac stuff like editing and want to use all the hdd space, cpu and ram i need for it
that the reason i want to dual boot lion and 7

i have read this guide and it explains most things by limneos
I have dual boot Windows 7 and OSX 10.5.6.

All you need to do is first , install Windows 7. Then, create a new partition for your osxwithin Windows 7 , format it as fat32 or ntfs and set to to be "active".

Then run the osx installation and before you start the install, go to Utilities and "disk utility" , select the partition you created from Windows 7 and format it as Journaled (don't delete it!).

Then, install as you would normally, selecting this partition as your installation target. (don't forget to customize your OSX installation with the necessary drivers for you system.)

After installation is comple... Read more

Answer:Want to dual-boot windows 7 and OSX Lion (maybe triboot with ubuntu)

Nope, that guide looks about right. As long as you're dual booting with Windows 7, that guide should stay the same no matter what version of Mac OS X you are using. I have a triple boot with W7, W8 and Ubuntu so a triple boot should work fine on yours too. The only thing I would be worried about is space. Triple booting on a 40GB hard drive gives you roughly 13GB for each OS.

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I have 2 internal hard drives, 1 running XP and the second SATA drive I bought was just to use for storage (Does not have partitions and still has over 100GB space on it.

I would like to install Ubuntu on my second drive and dual boot with XP.

How should I go about doing this? The 2 instruc-tions I have found only address this issue in a one-drive only scenario so I was wondering if there's any difference in my situation.

Thanks very much in advance.

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Look! How to make a dual boot windows 8 & ubuntu on laptop lenovo G50-30

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Will dual boot windows 10 1511 and ubuntu 16.04 be affected by anniversary update.


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Hi there folks,

Please bear with me, this is a bit long..

I want to have system with 2 OSes as named in the subject line. This is what I did to go about having that,

Its a new HDD (500 GB) partitioned as follows, 100 GB (for Windows 7), then 265 GB (Data) and then 100 GB again (For Ubuntu 14.04). I installed Windows and then installed Ubuntu on the respective partitions as mentioned.

Upon booting the system the grub screen appeared and could load Ubuntu but the Windows wouldn't. The windows loader threw the error as follows,

Status: 0xc000000f
Info: The boot selection failed because the required device is inaccessible

and also advised a startup repair.

I tried to do that using a bootable USB (DVD drive does not work) in vain. Choosing the Startup Repair option here took me to a screen where "Windows 7" OS is listed with "0 MB" Partition Size and "(Unknown) Local Disk" Location. Followed by a message, (I'm para phrasing here) the startup repair cannot fix the problem, send the error to Microsoft.

Then I read on the interwebs somewhere, to use the command line entity and run the 2 commands,
bootrec.exe /fixboot
bootrec.exe /fixmbr

Both of which were successful and upon booting it went back to the Windows loader now, with the same error and Ubuntu is not accessible at all.

So I have reinstalled the Windows on the same partition (the "head" 100 GB). My windows loader shows 2 instances of Windows 7 during... Read more

Answer:Dual boot issue with Windows 7 Ultimate & Ubuntu 14.04

I would like to get rid of the faulty Windows 7 entry on the loader and get Ubuntu up and running smoothly. Please let me know if you need any more info.


Please download "EasyBCD" from and use it to delete the non working entry from the BCD boot menu.

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