... the computer, or a computer virus (see Chapter 6). For directions on repairing Windows, see Chapter 14. 4. Reinstall Windows, which essentially refreshes all your system files and leaves your ... www.verypdf.com to remove this watermark.➟158Part III: Fixing Sick Hardware For purposes of this chapter, I’m going to assume that before your computer stopped working, it was running properly.Diagnose ... Keep in mind the proper thermal fit for your machine. If you replace a 500-watt power supply with a 750-watt unit, for example, you need to know whether your computer is capable of exhausting...