do the following steps
Please press windows+S key
Type cmd
From below list right click on command prompt
Click run as administrator
In the command prompt type sfc /scannow and press enter
Wait till it finished
DISM.exe /Online /Cleanup-image /Scanhealth (Press enter. Let it complete.)
DISM.exe /Online /Cleanup-image /Restorehealth (Press enter. Let it complete.)
Restart the pc