CCleaner  supports the cleaning of temporary or potentially unwanted files left  by certain programs, including Internet Explorer, Firefox, Google  Chrome, Opera, Safari, Windows Media Player, eMule, Google  Toolbar, Netscape, Microsoft Office, Nero, Adobe Acrobat, McAfee, Adobe  Flash Player, Sun Java, WinRAR, WinAce, WinZip, GIMP and other  applications[6] along  with browsing history, cookies, Recycle bin, memory dumps, file  fragments, log files, system caches, application data, autocomplete form  history, and various other data.[7] The  program also includes a registry cleaner to locate and correct problems  in the Windows registry, such as missing references to shared DLLs,  unused registration entries for file extensions, and missing  references application paths.[6] As of v2.27, CCleaner can wipe the MFT free space of a drive, or the entire drive itself.
CCleaner  can be employed to uninstall programs. In addition, CCleaner allows the  alteration of start-up programs, similar to the Microsoft  Windows MSConfig utility. Users can disable start-up programs.[8] As of version 2.19.901, CCleaner also allows users to delete system restore points
 
