cCleaner ...

Features ...

cCleaner (Crap Cleaner) is a freeware system optimization and privacy tool.
It removes unused and temporary files from your system which allows Windows to run faster, more efficiently and giving you more hard drive space.
The best part is that it's extremely fast! (normally taking less that a second to run) and best of all - Free.

Internet Explorer Cache, History, Cookies, Index.dat.
Recycle Bin, Temporary files and Log files.
Recently opened URLs and files.
Third-party application temp files and recent file lists (MRUs).
Including: Firefox, Opera, Media Player, eMule, Kazaa, Google Toolbar, Netscape, Office XP, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip and more...
Advanced Registry scanner and cleaner to remove unused and old entries.
Including File Extensions, ActiveX Controls, ClassIDs, ProgIDs, Uninstallers, Shared DLLs, Fonts, Help Files, Application Paths, Icons, Invalid Shortcuts and more... Backup for registry clean.
Windows Startup tool.