Windows repair

Step 1: Type cmd in the search box on the taskbar, and then right-click the Command Prompt app and select Run as administrator.

SFC /Scannow
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /restoreHealth 
SFC /Scannow

Step 1: Type cmd in the search box on the taskbar, and then right-click the Command Prompt app and select Run as administrator.

net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver

Step 2

net start wuauserv
net start cryptSvc
net start bits
net start msiserver