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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IMPORTANT: You may experience problems running CCleaner if your AV definitions are out of date.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.

7,574 topics in this forum

  1. update

    By Fitterian,
    • 1 reply
    • 313 views

  2. cant get my license at all.

    By Travis22,
    • 3 replies
    • 460 views

  3. Win10Prox64 CCleaner Pro auto starts cleaning on system boot - UNWANTED BEHAVIOR

    By Job4848,
    • 0 replies
    • 239 views

  4. erros :((

    By hoanggia1,
    • 1 reply
    • 617 views

  5. ccsetup541.zip

    By mallet,
    • 6 replies
    • 651 views

  6. Avast antivirus installations from CCleaner installer 1 2 3

    By nukecad,
    • 53 replies
    • 8.4k views

  7. CCleaner appcrash after selecting install.

    By 7wins,
    • 22 replies
    • 8.2k views

  8. CCleaner crashes

    By tdehan,
    • 1 reply
    • 793 views

  9. Ccleaner does not work well with Windows 10

    By RvA,
    • 3 replies
    • 787 views

  10. CCleaner "freezes"

    By Diazruanova_1,
    • 1 reply
    • 1.4k views

  11. Newest CC Version

    By pjcar52,
    • 8 replies
    • 1.4k views

  12. Windows 10 Registry Cleaning

    By jcraighj,
    • 4 replies
    • 806 views

  13. c cleaner not cleaning

    By chrispycock,
    • 1 reply
    • 587 views

  14. Windows 10 v1803 - CCleaner removes itself?

    By CeeDee,
    • 5 replies
    • 1.1k views

  15. Updating CCleaner.

    By Iowa,
    • 7 replies
    • 1.2k views

  16. CCleaner Pro changed my Firefox settings

    By DanyBo,
    • 9 replies
    • 926 views

  17. Update Unable to Write to CCLEANER64.EXE

    By DesertRat,
    • 1 reply
    • 1.3k views

  18. 5.43 Update does not actually update

    By wyzard,
    • 1 reply
    • 879 views

  19. Deep Cleaning Old Windows installations

    By JackDownUnder,
    • 2 replies
    • 1.7k views

  20. Ccleaner 5.42, OS detection

    By xdelatour,
    • 4 replies
    • 551 views

  21. [DOWNLOAD LINK BROKEN] CCleaner v5.43.6520 Portable

    By cookieboyeli,
    • 7 replies
    • 2.4k views

  22. Privacy elements can't be unchecked

    By drbobr2k,
    • 2 replies
    • 1k views

  23. Force Stopping Microsoft Edge

    By Warren Schroeder,
    • 0 replies
    • 817 views

  24. Update Is not to download

    By Sergio Sinisterra,
    • 0 replies
    • 339 views

  25. CCleaner 5.32 install bug in Win 7

    By BobbyB,
    • 5 replies
    • 695 views
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