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IMPORTANT: You may experience problems running CCleaner if your AV definitions are out of date.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

1,704 topics in this forum

  1. Unable to install ccleaner

    By EMN,
    • 21 replies
    • 1k views

  2. Wipe free clusters with CCleaner? Misleading options

    By thoste,
    • 2 replies
    • 686 views

  3. what does the term "content" actually mean; it is one of the possible matches wi

    By ryancar73,
    • 3 replies
    • 250 views

  4. CCleaner Free V5.89.9401(64 bit) save de-installed list as textfile not .csv

    By JES,
    • 1 reply
    • 469 views

  5. CCleaner crashes On Opening

    By Exoblast,
    • 0 replies
    • 513 views

  6. CCleaner Browser, Windows Security, Software

    By dadybear1234,
    • 1 reply
    • 498 views

  7. ma clé de licence est invalide.

    By guiberteau,
    • 6 replies
    • 708 views

  8. DRIVE WIPER

    By Marc2,
    • 2 replies
    • 316 views

  9. Cc Cleaner closing as soon as it opens

    By SusD,
    • 1 reply
    • 345 views

  10. windows 10 PUABundler:Win32/PiriformBundler

    By CDeanC,
    • 6 replies
    • 2.8k views

  11. Why is Thunderbird listed as obsolete software?

    By Matt_Au,
    • 0 replies
    • 358 views

  12. HMA bundle

    By EM8,
    • 2 replies
    • 499 views

  13. Filezilla

    By randomuser4545,
    • 2 replies
    • 243 views

  14. Software Transfere between PC's

    By Willem Breet,
    • 1 reply
    • 412 views

  15. Update 5.79 to 5.89

    By MixedMac,
    • 3 replies
    • 612 views

  16. Problème de licence / Problem of license

    By DepannePc49,
    • 2 replies
    • 1.3k views

  17. Trackers

    By Tom Deaton,
    • 1 reply
    • 1.2k views

  18. Western Digital Razer Obsolete Software Key.

    By cleana,
    • 1 reply
    • 1.1k views

  19. CCleaner Professional not running on 64-Bit Win10 after auto-update to v5.89

    By Mike7036,
    • 4 replies
    • 637 views

  20. cant sign in to register my ccleaner

    By andomando,
    • 2 replies
    • 792 views

  21. Erro : 0x4 - Atualização de Chave

    By MFuzari,
    • 3 replies
    • 680 views

  22. Lost Login Credentials

    By JBrewsterc,
    • 1 reply
    • 898 views

  23. duplicate files

    By kcskydancer2,
    • 1 reply
    • 741 views

  24. Ccleaner icon is taskbar slow to disappear

    By Anony2000,
    • 1 reply
    • 360 views

  25. Upgrade tab

    By Anony2000,
    • 0 replies
    • 334 views
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