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

With CCleaner v6.25, we have expanded the Driver Updater and Software Updater databases to include additional driver versions and apps. We also fixed several bugs and have enhanced CCleaner's user interface and performance.

We've resolved a stability issue that some CCleaner trial users encountered.

Taking the hassle out of PC maintenance

  • The Driver Updater database has now been expanded to contain more than 90 million drivers to help maintain optimal PC performance.
  • You are now able to cancel the downloading of driver updates currently in progress.
  • We've updated the Software Updater database to the latest version so that it includes additional apps and their updates.

Fixing bugs and other improvements

  • We fixed an issue that could have caused CCleaner to interrupt the uploading of larger files to Google Drive when running a cleanup.
  • We resolved an issue where, in certain cases, the number of drivers to update displayed on the Driver Updater icon was incorrect.
  • The "Scan Now" button on the Health Status screen now correctly triggers the Health Check scan.
  • By enabling remote log upload in the CCleaner Support Tool in the case of issues, we are now able to collect larger crash dumps that cannot be sent by email.
  • The Support Tool is now saved to a new, more suitable location.
  • We have made improvements to boost CCleaner performance and stability.