I'm working for a charity and I'm reponsible at the moment for sorting out the computers here. They're all xp p4 3.0 machines. They could all benefit from a bit of tweaking and this is the list I've come up with off the top of my head so far: Install Antivir Use best performance with a bit of tweaking on the memory and visual settings Move page file to front of HD Make sure adblock is up to date Sort out services and startup in msconfig Change all homepages on firefox to google. Ccleaner I'm just wondering if anyone can think of anything else to do that would speed them up/make more efficient and less annoying? I mean obviously they could probably do with a defrag but time constraints etc and probably not being able to leave them on overnight Thanks in advance guys!