CCleaner (formerly Crap Cleaner) is a freeware system optimization and privacy tool. It 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 than a second to run) and Free. Cleans the following Internet Explorer Temporary files, history, cookies, Autocomplete form history, index.dat. Firefox Temporary files, history, cookies, download history, form history. Google Chrome Temporary files, history, cookies, download history, form history. Opera Temporary files, history, cookies. Safari Temporary files, history, cookies, form history. Windows Recycle Bin, Recent Documents, Temporary files and Log files. Registry cleaner Advanced features 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... also comes with a comprehensive backup feature. Third-party applications Removes temp files and recent file lists (MRUs) from many apps including Media Player, eMule, Kazaa, Google Toolbar, Netscape, Microsoft Office, Nero, Adobe Acrobat, WinRAR, WinAce, WinZip and many more... 100% Spyware FREE This software does NOT contain any Spyware, Adware or Viruses.