I currently have 30.4 gig of garbage taking up space on my C drive in my Windows/Installer program. I am down to less then 2% free space. I downloaded and ran the Windows Installer CleanUp Utility yesterday and that only cleared 2gig (I was at nearly 33 gig in this file to start). Running this utility also removed the software I use the most on my pc (Sony eReader, iPhone and iTunes and all related programs, and Microsoft Office 2003!). I have not been able to install SP3 for XP, and I can't run a defrag because there is not enough space. How do I get rid of the junk that's been building up out there (unknown to me until I saw this hidden file) since 2005? Please someone help. Thanks.2 people need an answerI do too