New
#11
Open a CMD window as administrator and type:
chkdsk c: /f
It will say your disk is in use and ask if you want to schedule to next start = yes
Restart
Back to Windows, open a CMD window as administrator and type:
sfc /scannow
If it finds any corrupted files, fixing or not, reboot and run again
Then run
Dism /Online /Cleanup-Image /ScanHealth
and
Dism /Online /Cleanup-Image /RestoreHealth