How to clean up Winsxs folder on Windows Server 2012 R2 or Windows 8.1

For Windows 7 Refer to my other blog here:

https://amionrails.wordpress.com/2016/08/05/how-to-cleanup-winsxs-folder-on-windows-2008-r2-and-windows-7/

Windows 2012

Windows 2012 Source: https://technet.microsoft.com/en-gb/library/dn251565.aspx

Deployment Image Servicing and Management (DISM) is a command-line tool that allows you to install, uninstall, configure, and update Windows features, packages, drivers, and international settings. The /Cleanup-Image parameter of Dism.exe provides advanced users more options to further reduce the size of the WinSxS folder. For more information, see DISM Operating System Package Servicing Command-Line Options.

  1. Using the /StartComponentCleanup parameter of Dism.exe on a running version of Windows 8.1 gives you similar results to running theStartComponentCleanup task in Task Scheduler, except previous versions of updated components will be immediately deleted (without a 30 day grace period) and you will not have a 1-hour timeout limitation.From an elevated command prompt, type the following:
    Dism.exe /online /Cleanup-Image /StartComponentCleanup
    
  1. Using the /ResetBase switch with the /StartComponentCleanup parameter of DISM.exe on a running version of Windows 8.1 removes all superseded versions of every component in the component store.From an elevated command prompt, type the following:
    Dism.exe /online /Cleanup-Image /StartComponentCleanup /ResetBase
    
    WarningWarning
    All existing service packs and updates cannot be uninstalled after this command is completed. This will not block the uninstallation of future service packs or updates.
  1. To reduce the amount of space used by a Service Pack, use the /SPSuperseded parameter of Dism.exe on a running version of Windows 8.1 to remove any backup components needed for uninstallation of the service pack. A service pack is a collection of cumulative updates for a particular release of Windows.From an elevated command prompt, type the following:
    Dism.exe /online /Cleanup-Image /SPSuperseded
    
    WarningWarning
    The service pack cannot be uninstalled after this command is completed.
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