That's pretty much my opinion on that too: none of those "maintenance" apps. Getting rid of temp files by hand every now and then is quite simple and fast. Defrag every once in a while (I hardly ever bother). Virus/spyware scanning whenever you like (I've got nod32 resident, and I never bother doing scans for viruses or spyware as I haven't caught any in a VERY, VERY long time - no spyware since I ditched IE, and no viruses in years). As for the other apps, I wouldn't want those on my system. Most registry "fixers" often do more harm than good and such, and with no real/noticeable improvement (unless your system's an absolute mess, in which case you might as well reinstall anyway). I see no need for apps like this... finally someone who think like me! but my experiment was to not install any type of protection out of my router's firewall. and i mean nothing at all, i ran no test at all. 6 months later i ran all of the normal test, nod32, adaware,spybot,defender. all that came up was 4 errors for something firefox related which i only use for testing websites i make so i know they work on all browsers, and just 1 spyware. so thats 1 spyware over 6 months with no protection, now i think thats pretty darn good!