Hi all, I've used WinDirStat to track down the culprits and found that the following 2 folders take up the most space. C:\Windows\Installer = 7.9GB C:\Windows\winsxs = 6.9GB I've done some reading on both folders and understand the need for both. I've also came to know that both folders can contain orphaned files which contribute to bloated size. I tried using MsiZap.exe (G!) to help with the Installer folder but it tells me that there's nothing to clean up. How can I reduce the size of these folders, any utilities out there that would safely removed unneeded files? Thanks!