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Unmountable Boot Volume Error in Windows 10: How to Fix It

August 15, 2019 by Dan Kukarsky

Are you hit with the Unmountable Boot Volume error, which prevents you from logging in to Windows 10? Here are 4 proven ways to fix this.

Option 1: Do Nothing

Yes, you read it right. If you’re accidentally hit with the Unmountable Boot Volume error, doing nothing about it should be your first choice.

Once your PC reboots and starts automatic repair, you’ll get a black screen with the mouse cursor. In about 15-20 minutes after that, you’ll be redirected to the Windows login screen.

If this doesn’t help, proceed to Option #2.


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Option 2: Run Startup Repair

  1. Boot your PC from a Windows 10 CD or a USB drive (download the Windows 10 disc image from Microsoft’s official website if you don’t have a Windows 10 media source).
  2. Choose the Repair your computer option located at the bottom left corner of the screen.
  3. Select Troubleshoot > Advanced options > Automatic Repair.
  4. Click Next and select the OS you want to repair.

Option 3: Fix Master Boot Record

  1. Boot your PC from a recovery media source (see Option 2 > Step 1 if you don’t have one).
  2. Choose the Repair your computer option located at the bottom left corner of the screen.
  3. Select Troubleshoot > Advanced options > Command Prompt.
  4. In the command prompt, type bootrec /fixboot and hit Enter.

Option 4: Reinstall Windows 10

If none of the previous options help, boot from your recovery media source and proceed to reinstalling the OS.

Did you find this post helpful? See more Windows tips & tricks on our blog and follow us on Facebook, Twitter or LinkedIn to get all the latest updates as they happen.

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Related Posts

  • Unattended Access Setup Fatal Error: How to Fix It
  • How to Fix “Page Cannot Be Displayed” Error in Internet Explorer
  • 30 Best Windows 10 Shortcuts to Know

Filed Under: Windows Tips & Tricks Tagged With: Unmountable boot volume, Windows 10

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