If you notice Window modules installer worker eating up your CPU, these tips might help you out.


.

1) run Windows update troubleshooter

Control Panel
Troubleshooting
View All
Windows Update => Right click => Run as Administrator
Click Next
After the wizard has been run, click Close the troubleshooter

2) run disk cleanup

http://windows.microsoft.com/en-us/windows/delete-files-using-disk-cleanup

Open Administrator CMD prompt
C:\>cleanmgr.exe
Wait a few minutes for the scanning to complete.
Select only [x] Windows Update Cleanup for "Files to delete:".
Deselect everything else
Click OK

3) If you’re unable to run cleanmgr.exe due to high CPU utilization, you can
clean the WinSXS folder.

This seems to do the same thing than Windows Update cleanup.

C:\>Dism.exe /online /Cleanup-Image /StartComponentCleanup /ResetBase

https://technet.microsoft.com/en-us/library/dn251565.aspx

4) run dism.exe /online

Open Administrator CMD prompt
C:\>dism.exe /online /cleanup-image /scanhealth
C:\>dism.exe /online /cleanup-image /restorehealth

https://technet.microsoft.com/en-us/library/hh825265.aspx

DISM Operating System Package Servicing Command-Line Options

You can also use these servicing commands to enable or disable Windows features, either offline or on a running Windows installation.

The following operating system package-servicing options are available for a running operating system:

DISM.exe /Online [/Get-Packages | /Get-PackageInfo | /Add-Package | /Remove-Package ] [/Get-Features | /Get-FeatureInfo | /Enable-Feature | /Disable-Feature ] [/Cleanup-Image]

Use /ScanHealth to scan the image for component store corruption. This operation will take several minutes.

Use /RestoreHealth to scan the image for component store corruption, and then perform repair operations automatically. This operation will take several minutes.

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