Transcription: The third tool here is defragmentation. Your files are not stored on disk in order like you would think they were. They're put anywhere on the disk where Windows finds space. This can slow down your computer, so every once in a while, probably every two weeks, you should click on Defragment Now. It will look at your disk and it will first tell you if it's highly fragmented or not. This has said, I don't need to defragment right now. I'm going to, however, to show you how it works. So I'm going to select my C drive and click on OK. And then I'm going to click on Start. And it will go through my ...