You may come across an
UNMOUNTABLE_BOOT_VOLUME Blue Screen of Death error when you power on your Windows 10 computer. It blocks you away from your files and data. To fix this problem, you can try the methods as follows.
(
Note that you will need a
Windows 10 DVD or a
bootable USB drive before you proceed. If you have neither of them, you can
burn a Windows 10 ISO file to an available USB drive using another computer.
Once you have your Windows 10 media prepared, put it into your computer and boot your computer from it. If you don’t know how to do it, please check
How to Boot from a USB Drive, DVD or CD.
Then you can try any of the methods listed below.)
1) Fix UNMOUNTABLE_BOOT_VOLUME error with Automatic Repair
2) Fix UNMOUNTABLE_BOOT_VOLUME error by Fixing Master Boot Record
3) Fix UNMOUNTABLE_BOOT_VOLUME error using Chkdsk command
4) Fix UNMOUNTABLE_BOOT_VOLUME error by reinstalling Windows 10
1) Fix UNMOUNTABLE_BOOT_VOLUME Windows 10 blue screen error with Automatic Repair
Using Automatic Repair is the easiest way to fix problem of this kind.
a) On the
Windows Setup screen, after you finish choosing your language, click on
Repair your computer at the bottom left.
b) Click on
Troubleshoot on the next screen.
c) Click on
Startup Repair on the
Advanced options screen.
d) Select
Windows 10.
e) The repair will be started immediately. Please wait patiently for the process to be finished.
2) Fix UNMOUNTABLE_BOOT_VOLUME error by Fixing Master Boot Record
Master Boot Record (MBR) identifies where and how your operating system is located so that you can boot your computer normally. A malfunctioning MBR can cause problems such as UNMOUNTABLE_BOOT_VOLUME.
a) Repeat the steps in method 1 until you see the screen of
Advanced options.
b) Select
Command Prompt.
c) Type “
bootrec /fixboot“
in Command Prompt, and then hit
Enter.
d) Wait for completion of the process, and then restart your computer to see if the error message shows up.
3) Fix UNMOUNTABLE_BOOT_VOLUME error using Chkdsk command
UNMOUNTABLE_BOOT_VOLUME error can be caused by problems on your hard drive. You can run Chkdsk command to check up and fix these problems.
a) Open
Command Prompt on your Windows 10 media as the steps above show.
b) Type in “
chkdsk /r c:“(Note that “
c:” here refers to your
boot drive and
replace this with the letter you use in case
your boot drive is not C Drive) and hit
Enter.
c) Wait for completion of the process, and then restart your computer to see if it runs normally.
4) Fix UNMOUNTABLE_BOOT_VOLUME error by reinstalling Windows 10
If you try all methods above and you still get the
UNMOUNTABLE_BOOT_VOLUME blue screen error, you should consider reinstalling Windows 10.
a) On the
Windows Setup screen, after you finish choosing your language, click on
Install now.
b) Follow the instruction following to complete the process of reinstallation.
If the methods above are not helpful for solving your UNMOUNTABLE BOOT VOLUME Windows 10 Blue Screen error, it may be caused by issues on your hardware devices. You may consult a computer expert or contact your device manufacturers for further assistance.
