https://support.microsoft.com/en-sg/help/947821/fix-windows-update-errors-by-using-the-dism-or-system-update-readiness

https://whatsabyte.com/windows/windows-modules-installer-worker-windows-10/


Try to disable "Windows Update" service and delete C:\Windows\SoftwareDistribution folder.


Then run these commands:

Try opening a command prompts as an administrator and run this command; 

sfc /scannow

If it detects corruption that cannot be repaired run this command.
dism /Online /Cleanup-Image /RestoreHealth


Do a Disk Cleanup (Admin Mode)

Defrag HDD