Has anyone successfully deleted the Windows Installer files successfully before? They are taking up 35.1% of my total hard drive space. Which ones are needed and which ones can be purged? In order to see this folder, I had to unhide system files by going to Windows Explorer > Organize (dropdown) > Folder and Search Options > view tab > uncheck ==> Hide protected operating system files (Recommended).
I used WinDirStat program to get these percentages. To see the image in full size, open it in a new tab.
I was told by someone that you should not delete these files, but then I found a utility–Windows Installer CleanUp Utility (very old version) that deleted these. But it doesn't run on Windows 7. If anyone has a later version that they found works, please let me know the path.