Press the Windows Key + R and type services.msc and press enter. Scroll down and find Windows Installer. Double-click “Windows Installer” in the list. On the General tab, make sure the service is started on Service Status. If the service is not running, click Start, and then click on OK.
If this does not work, search for Command Prompt in the start menu and right click and select Run as Administrator.
Type sfc /scannow in the CMD box. Note: You have to right-click and select Run as Administrator on the CMD icon to make sure that the scan works okay. You also need a space between sfc and /scannow
You'll see this if sfc /scannow repaired anything:
Windows Resource Protection found corrupt files and successfully repaired them.
Details are included in the CBS.Log windir\Logs\CBS\CBS.log.
For example C:\Windows\Logs\CBS\CBS.log.
Note that logging is currently not supported in offline servicing scenarios.
It will display a message if it didn't repair anything.
Edited by iMacg3, 28 April 2017 - 01:04 PM.