Did you encounter a blue screen error 0x000000ED UNMOUNTABLE_BOOT_VOLUME all of a sudden while working on your Windows PC? If yes, then this post is intended for users like you. Read this article to explore what may trigger this error code in the first place and what are the possible workarounds to fix this issue on your computer.
When this stop error occurs, you won’t be able to view your login screen. Well, if that’s the case, boot into the Safe Mode first, and try out the solutions outlined below.
What causes BSOD Error 0x000000ED on Windows?
The blue screen error 0x000000ED mostly occurs when your device meets one or more of the following conditions –
- Missing or damaged system files/folders.
- Corrupted boot configuration data.
- Faulty hard disk or Memory
Fix UNMOUNTABLE_BOOT_VOLUME Error 0x000000ED
To solve Unmountable_Boot_Volume Error 0x000000ED, try the solutions discussed below –
1] Restart the computer
There’s nothing to be concerned about if you get the UNMOUNTABLE BOOT VOLUME error for the first time. This could be due to the occasional hiccups that Windows encounters. In such cases, the chances of you encountering this error again are slim to none.
In this case, the only solution is to restart the computer and try to boot normally into Windows again. If you do face this stop error again, you must troubleshoot this error code thoroughly.
2] Utilize Windows Automatic Repair
When you encounter a blue screen error, Windows automatically try launching the Automatic Repair tool. If this tool doesn’t start up, you may use the following steps –
- Before you launch the startup repair tool, you must insert installation media into one of the ports on your PC.
- After you insert the PenDrive containing Windows OS, force restarts your device by pressing the power button.
- When Windows 11/10 reloads, click the Next button.
- You may see the “Install now” screen next.
- Search for the “Repair your computer” button available at the leftmost bottom of the screen.
- Click Troubleshoot and then Startup Repair.
- Let the system diagnose and repair the underlying causes.
Once this is over, you may boot into your device normally.
3] Repair Master boot record
The MBR is an abbreviation for master boot record, which stores information about the location of windows on your hard drive and aids in proper loading when you turn on your computer. The UNMOUNTABLE_BOOT_VOLUME error may occur when this record is corrupted somehow.
To repair the MBR, restart your computer using the Windows install media and follow these steps –
- Go to the install now screen and click “Repair your computer“.
- Click Troubleshoot and then select Command Prompt.
- On the elevated console, run these codes one by one.
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd
- The first two codes will fix any issues with the device booting and master boot record, while the last one rebuilds the boot configuration data.
- Type “exit” and press Enter to come out of Command Prompt.
- Restart your PC next and see if this resolves the UNMOUNTABLE_BOOT_VOLUME Error 0x000000ED.
4] Inspect Harddisk
Many a time, the hard disk itself got corrupted and hence triggers such error codes. You may inspect your HDD for any problem using the CHKDSK command. This tool will look for any errors on the hard drive and in case it does find any issues, this will try to repair that. Here’s how to check hard drive failure on your computer –
- Launch Command Prompt as directed in the above solution.
- On the elevated console, type the following, and press Enter.
chkdsk /r c:
The “/r” flag in the above code is used to locate bad sectors on your disc and correct them; omitting this “/r” flag results in only a listing of errors.
5] Try System File Checker
If the hard drive passes the CHKDSK test, the problem must lie with the system files only. You may repair the damaged files or folders by running the System File Checker utility program.
To do so, launch CMD as directed above, and run this single-line command –
sfc /scannow
Let this tool run as long as it takes to repair the corrupted files. In case it does find any missing files, the same will be generated automatically.
6] Inspect Random Access Memory
The presence of faulty RAM may also result in a blue screen error. So, go and check if the installed RAM on your PC is working all right or if it has been corrupted somehow. Here’s how you may diagnose Memory on Windows PC –
- Press Win + S, and start typing Memory.
- Click the top result i.e. “Windows Memory Diagnostic”.
- Click over the first result i.e. Restart now and check for problems.
- Wait for a few minutes while the system scans for any issues inside your device’s RAM.
What to do if the error 0x000000ED still persists?
In case the Error 0x000000ED UNMOUNTABLE_BOOT_VOLUME still appears, consider replacing your hard disk drive. This is because in most cases, a faulty HDD is the reason behind a blue screen error. Or, you may clean install Windows on your computer and check if this resolves the issue that you were struggling with.
I hope you find this article useful in fixing the error code 0x000000ED on your PC. Do let us know which solution exactly works in your case, so that other users may try that first.
