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CCleaner Help Requests

Need help installing or using CCleaner on your PC? Be sure to check the the CCleaner support website. If you need information on your paid CCleaner licences, expiry dates, registration information and download links you can get that directly from the CCleaner licence lookup. Can't find the answer in the FAQ files? Maybe it has already been asked and answered here - or start your own thread.
IMPORTANT: You may experience problems running CCleaner if your AV definitions are out of date.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.

1,714 topics in this forum

  1. Ccleaner not clearing Google history [Resolved]

    By fred99,
    • 5 replies
    • 681 views

  2. Paid for CC Pro version for 60 days but no download link sent to my mail

    By inbuon,
    • 10 replies
    • 1.2k views

  3. How long is the licens key for CCleaner professional valid (2 years)?

    By gerhardhepperle,
    • 1 reply
    • 1.3k views

  4. base du registre

    By poseidon2674,
    • 3 replies
    • 1k views

  5. Scan folders not Hard Drive

    By chippyman,
    • 4 replies
    • 523 views

  6. Overmessaging of upgrade notifications

    By Ken Edmonds,
    • 1 reply
    • 702 views

  7. How can I disable CCleaner from startup?

    By hgw53t,
    • 1 reply
    • 9.6k views

  8. Trash Context menu

    By Samp,
    • 2 replies
    • 974 views

  9. Ccleaner doesnt open and is unnable to uninstall

    By Haste,
    • 1 reply
    • 721 views

  10. Recycle Bin

    By Judy C,
    • 5 replies
    • 887 views

  11. CCleaner Pro for 3 computer

    By flotty,
    • 3 replies
    • 1.6k views

  12. ccleaner 5.64.7613 last working build on windows 10 (19042.685)

    By Pandor,
    • 6 replies
    • 1k views

  13. cc Pro cleaner won't let me activate it

    By chippyman,
    • 2 replies
    • 555 views

  14. CCCleaner 5.76.8269 Win10 v20h2 can't find duplicates on Synology NAS

    By PeterSp,
    • 2 replies
    • 831 views

  15. My free CCleaner not clearing history etc...?

    By dilligaf76,
    • 6 replies
    • 1.1k views

  16. Ccleaner doesn't install in Windows 10 20H2

    By Martin5832,
    • 2 replies
    • 655 views

  17. CCleaner Installer Freezes during installation process

    By azn415,
    • 4 replies
    • 5k views

  18. Ccleaner has changed my right click context menu, leaving blank lines

    By Mabel,
    • 17 replies
    • 1.5k views

  19. Smart Browser Cleaning Leaves Much Junk Behind

    By Carbonite,
    • 8 replies
    • 1.2k views

  20. update CCLeanar - Ox6 descriptor not valid

    By bdutre,
    • 1 reply
    • 1.1k views

  21. Second copy of Ccleaner will not start.

    By Audra,
    • 8 replies
    • 817 views

  22. Cookies

    By MrNash,
    • 1 reply
    • 375 views

  23. CCleaner won't install (portable and slim too)

    By dastiel,
    • 12 replies
    • 1.3k views

  24. Registry Bacups

    By IanMM,
    • 2 replies
    • 736 views

  25. Unknown programs in CCleaner uninstall list

    By Zakhwan05,
    • 13 replies
    • 10k views
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