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). Beware of this when installing or opt for the Portable version.

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, eMule, 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

  • We have initiated the roll-out of the new Software Updater tool which will also be included in the Health Check and brings a larger app database. A small set of users might experience the new Software Updater in the app.
  • We extended testing of the new Health Check flow to more users, which improves guidance during the cleaning and optimization steps.
  • We expanded our cleaning to our Customer Support tool.

Fixing bugs and other improvements

  • We resolved an issue that might cause the unregistering of CCleaner Professional for some users.
  • We optimized the UI on the overview screen and for Software Updater and Driver Updater post-update screens.
  • We resolved an issue when Software Updater might get stuck during the update of multiple apps simultaneously.
  • We resolved several licensing issues related to refunds and license expiration.
  • We improved the handling of uninstall parameters in the Uninstaller feature.
  • We implemented a fix to component permissions to prevent potential misuse.