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Reduce WINSXS folder size

I hate the C:\Windows\WINSXS folder. The size it takes up is a complete joke even BEFORE apps or windows updates.

These are some of the commands that I have found in the past (with varying success) to try and reduce the size of this rediculous folder.

It is rare that I have run this on a production environment, but on mini test VM’s and prelive stuff havent ever had any issues (depends if the commands even exist or are installed)

USE THESE COMMANDS COMPLETELY AT YOUR OWNRISK, IF YOU BREAK THIS FOLDER YOU WILL MORE THAN LIKELY RUIN YOUR SERVER. ALWAYS HAVE A BACKUP!

From and administrator command prompt try the following to try and reduce WINSXS folder size

  1. vsp1cln.exe
  2. compcln.exe
  3. dism.exe /online /cleanup-image /spsuperseded * (most successful)

or you can even try deleting blobs.bin file and reboot the system, c:\Windows\winsxs\ManifestCache\blobs.bin (only if its really big, and it should regenerate)

USE THESE COMMANDS COMPLETELY AT YOUR OWNRISK, IF YOU BREAK THIS FOLDER YOU WILL MORE THAN LIKELY RUIN YOUR SERVER. ALWAYS HAVE A BACKUP!

James