If your computer is getting long-in-the-tooth but you can't make room for upgrades in your budget, these easy-to-use tools may get your PC running like new.

It's high time I started doing these things instead of just knowing about them.

For laptops, MacBooks and desktop PCs, good audio can often seem like an afterthought. It’s hard to get quality sound from built-in speakers, which have to be crammed inside a hyper-thin chassis ...