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CCleaner Bug Reporting

Is CCleaner not working properly on your system? Then let us know (with details to help us hunt down the problem to solve it for you and for others).
IMPORTANT: You may experience problems running CCleaner if your AV definitions are out of date. If your CCleaner has stopped working and you are using an old version of Trend Micro antivirus protection, you will need to update your Trend Micro from here https://esupport.trendmicro.com/en-us/home/index.aspx.

7,540 topics in this forum

  1. CCleaner secure deletion not working with large videos.

    By Peter77281,
    • 3 replies
    • 504 views

  2. The duplicate file help pages are superimposed over one another. making them ver

    By Yahoody,
    • 7 replies
    • 1.3k views

  3. Crash is back!

    By johnp57,
    • 4 replies
    • 1.3k views

  4. Office 16/Office 365 potential issues with CCleaner [under investigation] 1 2 3 4

    By scoobydog,
    • 83 replies
    • 15.8k views

  5. Open CCleaner option not showing in right click recycle menu

    By ShubhRathi,
    • 2 replies
    • 889 views

  6. showing invalid key

    By fenil shah,
    • 2 replies
    • 968 views

  7. Tray icon disappears whenever Windows Explorer is restarted

    By Steve Magruder,
    • 7 replies
    • 886 views

  8. When these values from Registry are changed by CCleaner?

    By ObiWanKenobi,
    • 12 replies
    • 1.1k views

  9. CCleaner won't delete file with very long name

    By SouthSider,
    • 2 replies
    • 524 views

  10. It should show "ONLY" current O.S. restore points.

    By vsrawat,
    • 14 replies
    • 1.6k views

  11. While delete "startup items", it says file not found so cannot delete.

    By vsrawat,
    • 1 reply
    • 662 views

  12. CCleaner 5.84 constantly steals the focus

    By jvidal,
    • 13 replies
    • 918 views

  13. CCleaner Portable writes a lot to registry!

    By Wisewiz,
    • 2 replies
    • 974 views

  14. Issue with Microsoft casual games?

    By TechTchr,
    • 1 reply
    • 357 views

  15. CCleaner gets stuck and will not finish

    By terminosity,
    • 2 replies
    • 2.5k views

  16. Launch on startup

    By wtw84,
    • 1 reply
    • 321 views

  17. Ccleaner not cleaning trackers

    By Javajoe25,
    • 10 replies
    • 2.1k views

  18. No Driver Updater in registered CCleaner Pro Portable 5.83.9050 (64-bit)

    By Wisewiz,
    • 2 replies
    • 1k views

  19. GPU FILES in Edge Cache

    By johnp57,
    • 1 reply
    • 396 views

  20. "Send notifications when there is a new version of CCleaner" is not working

    By MrTom,
    • 2 replies
    • 679 views

  21. Firefox 'Cookies' change in CCleaner v5.83

    By nukecad,
    • 9 replies
    • 1.3k views

  22. ccleaner crashing

    By peter crow,
    • 3 replies
    • 1.2k views

  23. Tools > Software Updater wrong version and wrong platform for WinRar

    By Anthony Dean,
    • 1 reply
    • 592 views

  24. CCleaner stopped cleaning cookies and cache from Firefox.

    By Lo Caille,
    • 4 replies
    • 759 views

  25. Feedback: Why I can't use CCleaner + buggy UI + buggy general enquiry form.

    By jcel,
    • 7 replies
    • 1.2k views
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