You are seeing one of the Vista pit-falls, unlike XP it allocates a defined block of partition space for system restore and other features. Real POS design if you ask me. The defrag program can not get at those areas and never will.

I wish that OS would just go away like WindowsME


I do not like green eggs and ham, thank you thank you, Sam I am


You can try shutting down system restore completely in the settings and the services, reboot and check it again to see if it cleared the space or not. As soon as I am finished testing next week, sadly i may start looking into vista tweaks again. Right now I must maintain a default install so none of my tests are skewed or iff issues come up I can isolate the cause back to the hardware or the os.