CCleaner (Crap Cleaner) is a freeware system optimisation tool. That removes unused and temporary files from your system - allowing it 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.

v1.33.382 - [15th September 2006]
- Fixed a permissions problem where Issues would reappear
after being fixed.
- Main interface style changes.
- Fixed compatibility with Opera 9.
- Updated installer engine and icons.
- Added Slovak translation.
- Updated Albanian, German and Swedish translations.
- Minor performance tweaks.
- Minor bug fixes on older systems.

download

Official download site
(with Standard and basic version also)

http://ccleaner.com/download/builds.aspx