CCleaner removes unused and temporary files from your system - allowing it to run faster, more efficiently and giving you more storage space. CCleaner also comes with a registry scanner that scans for invalid references (advanced users).

Note: CCleaner sometimes bundles the free version of Avast antivirus (they are owned by the same company). The Portable version does not contain any bundles.

Cleans the following:

  • 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, 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.

Duplicate File Finder

You may not realize how many duplicate files are stored on your computer, taking up valuable hard drive space. CCleaner now includes a duplicate file finder tool, which can quickly find these files, and allow you to choose which ones to delete - freeing up more space on your PC than ever before!

System and Browser Monitoring

If you're a CCleaner Professional user, you can now set CCleaner to run every time you shut down your browser, or you can set it to monitor your entire system in the background and detect when to Clean based on disk space that can be saved!

What's New

Taking the hassle out of PC maintenance

  • The Driver Updater database currently contains over 110 million drivers to help keep your PC stable and running at peak performance.
  • We've added a Support Center link to the screen that is displayed when a driver update fails in order to help you resolve the issue.
  • We've improved our crash reporting.
  • To lower the risk of stability and security issues, we may automatically update your version of CCleaner to a version that is no more than one year old.

Fixing bugs and other improvements

  • We fixed an issue where CCleaner could crash during cleaning when another app is in a full-screen window on the main display.
  • Cloud Drive Cleaner can now be accessed by PCs that have the time set incorrectly.
  • We corrected text alignment on several screens localized into certain languages, mainly Greek and Russian.
  • We also made further stability and UI improvements.