Chkdsk and System File Checker
System File Checker is a utility in Microsoft Windows that allows users to scan for and restore corruptions in Windows system files. This utility is available on Windows 98, Windows 2000 and all subsequent versions of Windows NT family of operating systems. In Windows Vista and Windows 7
In cmd prompt type sfc /scannow
To run chkdsk to repair bad sectors type CHKDSK /R /F:
See also Windows 10 image repair