Here are 4 reasons why your computer slows down after a few hours — and how to get it back up to speed.

Even PC pros need to do a little detective work to find out why a computer may be slow. "There are a variety of causes that can slow down operations on computers," Brooks says.

Is my PC overheating and causing it to slow down? If your computer is making a whirring or chugging noise and feels hot to the touch, it's more likely that it's overheating.

The 14 most common reasons why your computer is so slow – and the simple measures anyone can take to make your desktop or laptop run faster.

We take an in-depth look at why your computer slows down over time.

Here are 4 reasons why your computer slows down after a few hours — and how to get it back up to speed.

Here are 4 reasons why your computer slows down after a few hours — and how to get it back up to speed.