Run a SFC /scannow
Open up an Elevated Command Prompt. Click on
type in CMD inside Search Programs and Files. Right click on CMD under neath Programs (1) choose Run as administrator . On the User Access Control window click on the Yes button or press Alt+Y on your keyboard . Command Prompt opens up to C:\Windows\System32>_
Type the command below and press <ENTER>
If there are any files found corrupted run it a few more times. If it still comes back with corrupted files . Upload the CBS.log found in C:\Windows\Logs\CBS\CBS.log
You're missing are few files Run the SFD Tool once more and click on the GRAB ALL button.