1. Go to Start » Accessories » System Tools » Disk Cleanup. Or go to Start, then type in Disk Cleanup in the search bar.
2. In the Disk Cleanup window, select the Files to Delete. Click OK.
The program will ask if you want to permanently delete the files. Click OK to begin the process. Take caution when choosing what files to delete – you cannot recover the information once removed.
There are other features of Disk Cleanup such as removing programs and system restore. The Programs and Features option links to the Control Panel where you can unnecessary software. The System Restore and Shadow Copies option removes any extra backup copies to save only the most recent. For more information, go to Microsoft Support »
Reference:
Microsoft Support. Delete files using Disk Cleanup. http://bit.ly/4ge7Dl
Microsoft Support. Disk Cleanup for Windows XP. http://bit.ly/1qBdrW