I could do with a bit of help here. While doing a bit of analysing I discovered that on my notebook the System Volume Information folder was using 12gb. This rather staggered me but I discovered this was caused by System Restore. I turned off System Restore and rebooted. This emptied the folder as I expected. I then turned it back on, set a restore point and all is fine. About 600mb now. The thing that has me baffled though is that my desktop computer was showing zero in that folder. System restore was turned on and many restore points had been set. So where is all that information gone. I should point out that both computers are running Vista Home Premium with SP1 and all updates. I turned off System Restore, rebooted then turned System Restore on again, set a couple of restore points, but the folder is still zero. I tested a Restore point and that worked fine. I'm afraid I'm at a loss. Obviously the information is somewhere. Suggestions would be greatly appreciated.