One often overlooked component of any great gaming PC is the CPU. While shiny new graphics cards get all the attention, the CPU is just as important, as it determines how fast your computer is.

Can you really get a Windows PC running like new again? Using this free tool from Microsoft, you can get pretty close.

A sluggish computer can be immensely frustrating. Simple tasks like launching apps, browsing the web or switching between windows can test your patience as you stare at a spinning wheel, waiting for ...