CCleaner (Crap Cleaner) is a freeware system optimization tool. That removes unused and temporary files from your system - allowing Windows to run faster, more efficiently and giving you more hard disk space. The best part is that it's fast! (normally taking less that a second to run) and Free. :)

Program Information Category: Tools and Utilities Type: Free Version: 1.17.90 Size: 0.4MB Works on: Windows Product page: here