System File Checker is a utility available in Windows 10 that checks for system file corruption. It's recommended for advanced users. To run it:
- Select Start , and in the search box, 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 spaces before each "/").
Enter sfc /scannow (note the space between "sfc" and "/").