

It’s the location for Windows Component Store files. The WinSxS folder is located in the Windows folder, for example C:\Windows\WinSxS.

WinSxS cleanup in Windows Server – using DISM and PowerShell This post also shows you how to move the Windows Server SoftwareDistribution folder and user’s Documents folder to a different partition. You can utilize your cmd.exe or PowerShell command-line, and use Deployment Image Servicing and Management ( DISM) to clean up the Windows Component Store (WinSxS) in Windows Server 2012 and up. This makes cleaning up used disk space a bit harder. The Windows disk cleanup utility cleanmgr is not available in Windows Server 2012 if the Desktop Experience-feature is not installed.

The answer: Windows Updates, Service Pack, and hotfix installations.
