I'm trying to clear out some space on a rather small laptop drive. I've found the following and wonder whether they are all necessary:
Windows/i386 - 454 Mb of files
Windows/ServicePack/i386 - 538 Mb
Windows/SoftwareDistribution - 43 Mb
Windows/System32/SoftwareDistribution - 48 Mb
Windows/PCHEALTH - 39 Mb
Program Files/InstallShield Installation Information - 46 Mb
Obviously its the 1 Gig of stuff in the two i386 folders that concerns me the most.