Dusting, and other things you haven't been doing. Just some quick little dos and don't for dusting a computer, from my experience. Dos Set aside time to clear out your computer of dust, bugs, and other things regularly. In a normal home or small business, this may be once a month or every other month and that's okay. For high dust environments, clean it more often. Be cautious of spinning fans. Even with a little spray keyboard duster, if you let it spin your fans, it may be strong enough to bend the blades or otherwise put additional wear on the fan physically. If you let it free spin, on occasion you may damage the bearings or the plastic connections to the motors and the fan won't connect properly. This causes the fan to be unusable and usually becomes a matter of replacing the fan. This includes processor fans, case fans, powers supply fans, etc... DO NOT SPIN THEM BECAUSE ITS FUN. I know it is, but refrain. Use between 40-50 psi from air compressors. Most controlle...