Just upgraded from enterprise 4.1SP02P03 to 4.1SP04FP03. Small time operation with part time BO administrator. What kinds of system cleanup is recommended post upgrades. I was horrified to find the C:\Program FIles (x86)\SAP BusinessObjects\InstallData to be 52GIG in size. I am slowly running out of room on my C: drive. Is the install data required for reverting an install. WOW I thought windows was a pig! I have attached my add/remove programs with the complete history of BOBI installs. Do I need to remove fix packs or anything or leave it as it is. Seems like a ticking time bomb to me. Any post install/upgrade clean up advice would be appreciated.