When UAC is enabled on Windows you need to elevate the command prompt to succesfully run the CHKDSK command.
- Windows 7 – Click > Start > All Programs > Accessories, Right Click on “Command Prompt” and choose “Run as Administrator”.
- Windows 10 – Type CMD into the search box, Right Click on “Command Prompt” and choose “Run as Administrator”.
- Choose Yes when prompted by User Account Control
- From the command prompt enter the normal CHKDSK C: /R command
Last Reviewed: 02/01/2018