I mean like defragging, virus-checking, and other actions. I do not do anything. My virus scanner updates automatically and that is about it. Once a while I run Ad-Ware and SpyBlaster. What do you guys do? I just installed a DVD+-RW and I would like to make sure that my system is running fine. Iw ould love to run diagnostic tools once a month on my whole system (Physical drives, OS, Applications, everthing) Where should I start? Thanks!