Even with today’s humongous hard disks, you can still end up with too many useless files taking up too much hard disk space. Fortunately, Windows includes a utility that identifies and deletes unused files. The Disk Cleanup tool is what you want to use when you need to free up extra hard disk space for more frequently used files.

To use Disk Cleanup, follow these steps:
1. Click the Start button to display the Start menu.
2. Select All Programs, Accessories, System Tools, Disk Cleanup.
3. If prompted, select the drive you want to clean up.
4. Disk Cleanup automatically analyzes the contents of your hard disk drive.
5. When Disk Cleanup is finished analyzing, it presents its results in the Disk Cleanup dialog box