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How to fix unmountable boot volume error on windows (blue screen error)

unmountable boot volume error

How to fix unmountable boot volume error on windows (blue screen of death error)

One of the most common problems is data corruption on the hard drive and the dreaded message “unmountable boot volume” error. Many think they are then forced to format the hard drive and start from scratch with a new installation of the operating system in such a situation. However, there is a better way to preserve existing installation until you have installation medium available ( CD or DVD ). Procedures for both Windows 7 and Windows XP are included.

If you receive the error message “Unmountable boot volume” ( along with scary blue screen of death ), and you have an installation ( CD or DVD ) disk, you still have a chance to save your system.

unmountable boot volume

This error is in most cases caused by unfortunate wear and tear corruption of data on the hard drive. By using the following tool, you often can repair the damaged hard drive, and also prevent a complete reinstall of your Windows operating system.

Steps for Windows 7:

1 – Boot from the Windows 7 DVD.

2 – Select repair your computer.

windows 7 start installation

3 – Select Command Prompt

system recovery options

4 – From the Command Prompt enter the following command: Chkdsk /R C: where “C” is your boot drive ( if you are not shore which is your boot drive use Diskpart utillity ) to find on which volume your operating system is –> type in command prompt diskpart, then type  list volume, where volume with your OS installation is marked as system, with drive letter shown in Ltr field ( usually C: ).


chkdsk repair options

5 – Answer Y to check the disk the next time that the system restarts.

6 – Then Reboot the system. After the reboot, Windows will check the hard disk and try to repair the damaged area on the disk.

7 – If you still get the error after this process ends, repeat the process, but try rebuilding the master boot record ( return to the step 3 ) at the command prompt with following command: bootrec /fixboot and then rebooting.

If your system boot correctly then your problem is solved ( but my recommendation is to change your hard disk as soon as you can, to avoid similar problem in the future, an of course to prevent loosing your data ).

Steps for Windows XP:

1 – Insert your Windows XP installation disk into an Optical CD\DVD drive and boot up your computer .

2 – When you see a instalaltion welcome screen, hit the R key on your keyboard to enter in Windows recovery console. This will enter you into recovery mode with a DOS prompt.

windows xp installation welcome screen

3 – Now type command chkdsk /p and hit Enter. This will launch a utility which will check for errors on your hard drive.

4 – After the process is done, type again type command chkdsk /r, this will attempt to repair errors on your hard drive.

5 – After process is done, type fixboot and hit Enter to repair any damaged boot files which may have become corrupted. When asked to say Yes or No, type Y on your keyboard.

6 – Type exit and press Enter to reboot your computer. And if it is everything OK, Windows will boot up.

Still stand recommendation to change hard disk as soon as possible.

If you have windows 8 and this error occur , maybe same procedure for Windows 7 will have effect, but this is not yet tested ( theoretically this procedure will stand for Windows 8 also ).