System File Checker is a utility in Windows 10 that checks for system file corruption. It's recommended for advanced users. To run it:
- In the search box on the taskbar, enter Command Prompt. Press and hold (or right-click) Command Prompt (Desktop app) from the search results and select Run as administrator.
- Enter DISM.exe /Online /Cleanup-image /Restorehealth (note the space before each "/"). (Note: This step may take a few minutes to start and up to 30 minutes to run and complete.)
- Enter sfc /scannow (note the space between "sfc" and "/").