Resetting PCs has become one of the staple methods to get rid of minor errors and bugs in most Windows computers. This enables users to reset their devices to their factory settings while retaining all the data.

Sometimes, resetting the PC may fail and throw out the error – “Unable to Reset PC. A required drive partition is missing.”

This error may be due to inactive or lost partitions, defective HDD or SDD, corrupted boot configurations, etc. It may occur in either Windows 8 or 10.

Solution 1. Using CHKDSK to Check the System Partition

Check Disk Utility or CHKDSK is a built-in utility on Windows that is capable of performing scans on hard disks. This may provide a solution for recovering drive partitions so you may reset your PC. After launching the Command Prompt, enter chkdsk c: /f (replace "c" with the drive letter of the volume you want to check).

Solution 2. Use Command Prompt

Step 1. Open Command Prompt through Windows Repair.