CMD:

->	open as admin

->	select Windows Root folder

-> 		Dism /Online /Cleanup-Image /CheckHealth 	This checks for errors in the registry
->		Dism /Online /Cleanup-Image /ScanHealth		This scans the system for errors and displays whether any are present.
->		sfc /scannow					This scans the system files for damage and repairs them.
->		Dism /Online /Cleanup-Image /RestoreHealth	With this command, errors are then corrected with the help of Windows Update. (As far as possible)

->	restart

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PowerShell:

->	open as admin

->	select Windows root folder

->		Repair-WindowsImage -Online -CheckHealth	This checks for errors in the registry
->		Repair-WindowsImage -Online -ScanHealth		This scans the system for errors and displays whether any are present.
->		sfc /scannow					This scans the system files for damage and repairs them.
->		Repair-WindowsImage -Online -RestoreHealth	With this command, errors are then corrected with the help of Windows Update. (As far as possible)

->	restart