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1. HOW TO CLEAN UP WINDOWS INSTALLER FOLDER WINDOWS 7 NO CD
2. HOW TO CLEAN UP WINDOWS INSTALLER FOLDER WINDOWS 7 UPDATE

This is great and all, but I really don’t feel like repeating this process 100 times, let alone 1000+ as some of you might have to in your enterprise. You will notice that the next time you reboot Windows will act like it is processing new Windows updates and then cleaning up afterwards. Once you select all that needs cleaned up and hit ok, the utility will take care of getting rid of the clutter. As you can see from the screenshot from my test system, 17.1 GB, 6.32 can be cleaned up.

HOW TO CLEAN UP WINDOWS INSTALLER FOLDER WINDOWS 7 UPDATE

Once the scan has run you will find a couple of new options, including Windows Update Cleanup and Service Pack Backup Files. If you have UAC turned on and you did not choose to run the utility as an administrator you will need to click the “Clean up system files” button to have the utility to scan for this type of data, which will probably take a while to run. Once installed (no reboot needed) you have to run the Disk Cleanup utility. In the enterprise this can be pushed via WSUS or other update mechanisms. If you are doing this on a one off basis you can download the patch either directly here or run Windows Update making sure to look for KB2852386. First off you need to get the proper update installed. Now that you know what WinSxS is, how do we go about cleaning it up. So that is what the WinSxS directory does for you.

HOW TO CLEAN UP WINDOWS INSTALLER FOLDER WINDOWS 7 NO CD

When you need to do a rollback, Windows uses this as the source to pull the installers from, thus no CD needed. What this directory does, among other things, is store all Windows updates ever installed on the computer even when they are superseded by others. Remember in XP when if you wanted to roll back a Windows Update you got prompted for the CD and then you had to find it or burn a new one or just give up? These days you don’t get asked for that anymore and WinSxS is why. Well after a new patch released with the October batch, KB2852386, we now have a method to clean up unused updates in this directory and help to bring Windows back down to its fighting weight. Even worse, trying to manually just dump this directory will severely break your Windows installation. As an example as I write this article this directory on my test VM is currently at 17.1 GB, which is a bit much.