How to Resolve Unable to reset your PC (A required drive partition is missing) on Windows PC

PC resetting has become one of the main methods of fixing minor bugs and flaws on most Windows computers. In this way, users can reset their devices to factory settings while retaining all data. Traditionally, this task is solved by reformatting the drive, but this requires transferring data to a storage device, as this process erases all data on the computer. For this reason, this new Windows 10 feature is very ideal.

However, you may not be able to reboot your PC due to errors. A common error that may occur is the message “The computer cannot be rebooted. The required disk partition is missing”.

What is the reason why your computer cannot reboot – “required drive partition is missing”?

The “Cannot reset your PC – a required disk partition is missing” error can have many causes, such as an incorrect active partition setting, corrupt boot configuration, hard drive errors, or bad sectors. This error can be found in Windows 8, Windows 8.1, and Windows 10.

If you encounter the same error and don’t know how to fix it, try the following solutions in sequence.

How to repair the error message Failed to restart your computer – “required disk partition is missing”?

Perform a system restore

  1. Connect the USB stick to install Windows and reboot the computer.
  2. Enter BIOS and set the computer to boot from the Windows USB installer.
  3. On the Windows Setup window, select “Restore Computer”.
  4. Select Troubleshooting -> Advanced Settings -> System Restore.
  5. Select the previous working state (data) that you want to restore to your computer.
  6. Wait for Windows to restore the system. Then restart your computer.

Reset your computer’s settings

  1. Right-click the Start or Windows icon and choose Settings -> Update and Security -> Restore -> Reset This PC -> Run.
  2. Click either “Save My Files” or “Delete All”.
  3. If you selected “Delete All” in the previous step, select “Only the drive where Windows is installed” or “All drives.
  4. Select “Delete files and clear disk” if you want to sell the computer. The next user will not be able to recover the deleted files.
  5. Click “Reset” when prompted.

Running the SFC (System File Check)

  1. Press Windows + X, click Search and type cmd in the search box.
  2. Right-click on Command Prompt and select “Run as administrator”.
  3. Enter the sfc command to restore missing or corrupt system files causing the “Cannot reset PC” error and press
  4. Enter: sfc /scannow

Frequently Asked Questions

  1. Type diskpart at the command prompt and hit Enter.
  2. Type list disk and press Enter to display all connected hard drives.
  3. Make sure you know which disk you want to reset before you continue!
  4. Type select disk # and press Enter (where # is the number of the hard drive you want to reset).

  1. Find the lost partition in Disk Management.
  2. Run CMD as administrator.
  3. Type diskpart in the window and press Enter.
  4. Type list disk and press Enter.
  5. Type select disk # and press Enter (replace # with the number of the hard drive that contains the lost partition).

  1. Disabling a hidden partition in Windows 10.
  2. Create partitions and assign a drive letter.
  3. Reformat the partition to recover missing partitions on the hard drive.
  4. Update device drivers through Device Manager.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.