The “Unmountable Boot Volume” blue screen Windows error prevents the computer from booting, locking out the computer user completely. Read further to understand what Unmountable_Boot_Volume Error means? What is causing this particular Windows 10 error? & What can you do to fix it?
What is a Unmountable_Boot_Volume error?
Basically, a “boot volume” is a hard disk partition that holds your Windows system and startup files. When your computer doesn’t load the Windows operating system correctly, the error message Unmountable_Boot_Volume appears. Most users encounter this BSoD error when launching, installing/uninstalling software or applications, or updating the Windows operating system.
Unmountable_Boot_Volume The reason behind the error
The main reason behind this error is related to the hard drive and indicates that Windows is not able to mount the boot file system properly. Other reasons are as follows:
- Defective boot volume
- Corrupted system files
- Corrupted memory
- Memory issues
- Major Windows updates
- Improper BIOS configuration (the rarest of which is that the Unmountable_Boot_Volume error does not occur unless you change the BIOS settings yourself)
How to Fix Windows 10 Unmountable_Boot_Volume Errors?
While a BSoD error is very painful, that doesn’t mean you can’t fix it. Check out the various methods below to fix this Windows 10 issue.
Fix 1: Restart Your PC
Workaround for Windows 10 Unmountable_Boot_Volume Errors: Sometimes Windows systems do experience temporary glitches which can lead to various BSoD errors. So, before you move on to some advanced methods to fix your problem, simply reboot. There is a good chance that you will recover from such mistakes.
Fix 2:
Running Windows Auto-Repair on your Windows PC does not help fix Unmountable_Boot_Volume errors on your system if you restart, Then you should go for Windows Auto Repair.
Note: This method requires bootable Windows installation media. If you don’t have any Windows 10 media available, you can visit this page for steps to create media.
- Plug in the installation media and reboot the system
- In the Windows Settings box, > Next > Repair your computer
- Select the troubleshooting option and go to the advanced option
- Click on Auto-Repair and wait for the process to complete
Hopefully, running will resolve your issue and you won’t run into an Unmountable Boot Volume error the next time you boot.
Fix 3: Repair Master Boot RecordIf the previous methods didn’t help you, then repairing Master Boot
Record might be a useful fix. The Master Boot Record (MBR) is responsible for storing information about where the operating system is installed, while helping to load the boot process correctly.
- If the MBR is corrupted, your system will not boot properly. Explore how to fix MBR and get rid of the Unmountable Boot Volume error.
- Start your PC with a Windows 10 DVD or USB drive.
- Select the Repair your computer option from the Windows Settings box
- Select the troubleshooter > advanced options > tap the command prompt
- Type and execute the following command in the CMD window to run the MBR repair – bootrec /fixmbr
- Wait for the run process to complete and execute the following command for additional fixes:
bootrec /fixboot
bootrec /rebuilddbcd
Leave the command prompt and wait patiently for the Master Boot to fix all the issues. Reboot the system to apply the changes. If you still see the Unmountable Boot Volume error keep popping up, try the next method.
Fix 4: Check for memory issues
Solutions to Windows 10 Unmountable_Boot_Volume errors: If none of the above methods resolve the Unmountable_Boot_Volume error, then there might be some issues with your RAM. You can run the Memory Diagnostic Tool to find and fix common RAM issues. You can refer to this article to learn how to run the memory diagnostic tool!
Fix 5: Reinstall Windows 10
How to Fix Windows 10 Unmountable_Boot_Volume Errors? Unfortunately, if you can’t fix the Unmountable Boot Volume BSoD error. You should try reinstalling Windows 10 on your system.
Note: Reinstalling Windows 10 will obviously erase all data and files. Therefore, it is recommended that you back up all your important files before proceeding with this method.
To reinstall Windows 10, follow these instructions:
Turn off your computer and restart it using a bootable USB drive
Once the computer boots up> click the Install Now button and follow the on-screen instructions to successfully reinstall Windows 10.
Windows 10 Unmountable_Boot_Volume Error: Fixed!
If the above solutions help you fix Unmountable_Boot_Volume Windows 10 errors. Please share your experiences and feedback in the comments section below. Also, you are struggling or want to know about any other blue screen Windows 10 errors, check out the list of articles mentioned below!
