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IMPORTANT: You may experience problems running CCleaner if your AV definitions are out of date.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

1,710 topics in this forum

  1. CCleaner for Windows 10 (64 bit)

    By Badger6052,
    • 5 replies
    • 21.2k views

  2. How to get rid of Google Chrome entry in CCleaner

    By streetwolf,
    • 3 replies
    • 1.8k views

  3. Duplicate File Finder

    By rjlocal22,
    • 1 reply
    • 606 views

  4. CCcleaner will not load

    By AaronF247,
    • 3 replies
    • 939 views

  5. License Issue

    By Site_Mark,
    • 6 replies
    • 520 views

  6. Upgrade from 1 license to 3

    By MrMoore,
    • 2 replies
    • 749 views

  7. Confused about a startup

    By shadowblaster300059,
    • 0 replies
    • 457 views

  8. new ccleaner pro electonic download will not open

    By Petej,
    • 1 reply
    • 702 views

  9. Lost E Drive

    By btotheram,
    • 6 replies
    • 537 views

  10. CCleaner Pro Plus will not open

    By lberidon,
    • 3 replies
    • 426 views

  11. Trend Micro problem

    By Gary Yearsley,
    • 7 replies
    • 984 views

  12. restore registry keys removed

    By JungleJ,
    • 5 replies
    • 1.4k views

  13. ccleaner professional not working after electronic purchase

    By Michele Hoyt,
    • 2 replies
    • 230 views

  14. Tim D

    By Tim D,
    • 7 replies
    • 494 views

  15. Kelley

    By Kelley White,
    • 3 replies
    • 440 views

  16. CCleaner wont run

    By cats,
    • 8 replies
    • 824 views

  17. I upgraded to PRO just now and it keeps saying invalid

    By Carlos G Garcia,
    • 2 replies
    • 486 views

  18. Problem with Firefox History...

    By JPSCHERRER,
    • 3 replies
    • 647 views

  19. Software Updater issue

    By Ricktafire,
    • 4 replies
    • 1k views

  20. Restore after running Health Check

    By Jenise,
    • 5 replies
    • 1.4k views

  21. walkerstoo

    By walkerstoo,
    • 1 reply
    • 300 views

  22. Ccleaner Pro not working !!?? (1 week & NO reply back})

    By herbalist32,
    • 1 reply
    • 349 views

  23. CCleaner stopped working

    By bil,
    • 14 replies
    • 2.7k views

  24. CCleaner will not launch

    By Cube_6_Res,
    • 5 replies
    • 493 views

  25. Annoying software

    By davem555,
    • 0 replies
    • 737 views
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