Windows 95/98/ME/XP/Vista, Windows 7, and the Mac OS all provide a menu-driven method to shut down your computer. Don’t ignore these methods. Turning off power to your system while it is still running can be a disaster. Give your system the time it needs to flush caches, close files, and save configuration information before you [...]

Dust can make the chips inside your computer run hotter and also clog cooling vents.
 
At least once a year, unplug your computer, open the case, and blow out the dust. Do not wipe it with a rag; use either your breath or an aerosol can of compressed air.
 
Your mouse and keyboard will also require occasional [...]

Step 8: Keep Up-To-Date
 
Software drivers let your applications talk to important peripherals. It’s a good idea to check with your computer’s manufacturer at least four times a year for the latest updates. The easiest way to do this is to access the manufacturer’s Web site; most companies normally make updated drivers available for download. [...]

Step 7: Stick with the Program
 

Once you’ve installed a program on a Windows system, don’t rename the program’s directories or move its files from one place to another on your hard disk. If you do, your computer will likely lose track of key files. You can put your data files — the ones you [...]