CCleaner

CCleaner is a freeware system optimization and cleaning tool. This software can removes unused files from your system. This software also cleans traces of your online activities. Like : internet history, cache, cookie data, form data, password, and others.

Cleans the following :
- Web Browsers
- Windows

System Requirements :
- Windows XP / Vista / 7
- No minimum memory
- 10 MB of free hard disk space

Screenshot :

Download - CCleaner