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IMPORTANT: You may experience problems running CCleaner if your AV definitions are out of date.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

1,709 topics in this forum

  1. How do I uninstall CCleaner?

    By Anamandy,
    • 5 replies
    • 1.9k views

  2. Unable to Trial

    By FloppyWiener,
    • 1 reply
    • 618 views

  3. Please I need help

    By cervando,
    • 1 reply
    • 825 views

  4. Keep getting signed out of everywhere on Firefox - assuming ccleaner is to blame

    By dsCVxcfv33f,
    • 11 replies
    • 1.1k views

  5. CCleaner Freezing when I Analyze

    By rabst,
    • 1 reply
    • 512 views

  6. Microsoft Office is not working after CCleaner

    By allingus,
    • 1 reply
    • 668 views

  7. winbio.dll

    By NotRoot,
    • 7 replies
    • 2.4k views

  8. How to disable (deactivate) Performance Optimizer after it's enabled?

    By Hmm,
    • 2 replies
    • 2k views

  9. Cant Cancel Free Trial

    By NEedHelp1,
    • 4 replies
    • 3.2k views

  10. CCleaner Keeps Removing Edge Extensions

    By safeway_cht,
    • 1 reply
    • 542 views

  11. Duplicate image finder doesnt scan whole external hard drive!

    By Jonnyaaaaaa,
    • 4 replies
    • 824 views

  12. automatic cleaning schedule not working

    By ahmadssb,
    • 1 reply
    • 402 views

  13. CCleaner Pro Email change

    By Special Ed,
    • 1 reply
    • 387 views

  14. can't open Microsoft programs after running CCleaner

    By Novice55,
    • 16 replies
    • 3k views

  15. Deleting invalid firewall rules: is it ok to do so?

    By Hmm,
    • 2 replies
    • 786 views

  16. Need information help

    By Lanimal2mars,
    • 1 reply
    • 598 views

  17. Disk Analyzer crashes

    By vladycho,
    • 2 replies
    • 720 views

  18. Erasing Clean Space Takes Days

    By DenAdd,
    • 5 replies
    • 915 views

  19. This is weird

    By randomguy556534,
    • 1 reply
    • 549 views

  20. startup programs

    By MaPi,
    • 0 replies
    • 299 views

  21. Unable to access Pro on Android

    By syzygus,
    • 2 replies
    • 948 views

  22. CCleaner PROFESSIONAL *PORTABLE*

    By Poldello,
    • 1 reply
    • 660 views

  23. Installer CCleaner Pro sur mon portable

    By Eric_Brd,
    • 1 reply
    • 812 views

  24. unable to install ccleaner

    By f4kw14hm3n0w,
    • 1 reply
    • 562 views

  25. Custom Clean → Windows → Windows Downloads

    By pserpas,
    • 1 reply
    • 1.1k views
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