This is a video tutorial in the Computers & Programming category where you are going to learn how to defrag your computer using CCleaner and disk defrag. First go to CCleaner and download the free program. After that install it and launch the program. Click on "analyze" and it will tell you how much of disk space you will gain by removing temporary files. Hit "run cleaner" and then OK and the cleaning will be done. Now go to control panel and click on "disk defragmenter" under "maintenance". Click on defragment and it will defragment the fragmented files and you will gain hard disk space.