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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).
IMPORTANT: Users are reporting that recent versions of CCleaner do not open when their AV is out of date. If your CCleaner 5.65 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.

7,091 topics in this forum

  1. CC Cleaner (Paid) totally deleted from computer [outdated antivirus]

    By NolaMargie,
    • 3 replies
    • 345 views

  2. CCleaner pro will not open on my W10 PC

    By Radioden45,
    • 1 reply
    • 196 views

  3. CCleaner Cannot Fully Clean CCleaner Browser

    By Arnold1,
    • 1 reply
    • 180 views

  4. Craigslist images not working after running CCleaner

    By beajae,
    • 1 reply
    • 275 views

  5. Office 16/Office 365 potential issues with CCleaner [under investigation] 1 2 3 4

    By scoobydog,
    • 80 replies
    • 8.1k views

  6. Skype Issue

    By matty13,
    • 10 replies
    • 7.2k views

  7. OOKLA Speedtest bug?

    By jellyroll,
    • 2 replies
    • 244 views

  8. Versions after 5.65.7632 broken

    By bearsound,
    • 9 replies
    • 524 views

  9. Problem with Edge during the scan

    By Christi1,
    • 3 replies
    • 230 views

  10. v.5.66.7716 CC pro. Still has problem reaching server

    By Bergster7,
    • 0 replies
    • 255 views

  11. ccleaner closes when minimized to system tray

    By Tom H,
    • 6 replies
    • 1.5k views

  12. CCleaner 5.65.7832 64 bit Health Check Page is blank

    By racydex,
    • 23 replies
    • 1.1k views

  13. Can't install Update 5.66

    By EricG,
    • 2 replies
    • 741 views

  14. CCleaner not working after update

    By RockyL,
    • 12 replies
    • 2.7k views

  15. nesest download does not work in user mode

    By nontrad,
    • 13 replies
    • 406 views

  16. MS EDGE CHRO REMOVED - STILL IN Cc

    By erincc,
    • 10 replies
    • 555 views

  17. Update failure 1 2 3

    By richardglass,
    • 53 replies
    • 4k views

  18. Ccleaner 5.66

    By sidthefinger,
    • 7 replies
    • 567 views

  19. CCleaner v5.65.7632 Forum and Release Announcement Problems

    By cbaumer0628,
    • 3 replies
    • 451 views

  20. Bas

    By Bas,
    • 1 reply
    • 276 views

  21. Startup Anyway When Disabled

    By alphamachina,
    • 3 replies
    • 313 views

  22. WHEN UPLOAD LASTEST CC version. SHOWING VIRUS ALERT BY Mcafee

    By suveki,
    • 3 replies
    • 440 views

  23. Emisoft and Malwarebytes issue [FALSE POSITIVE]

    By prston,
    • 5 replies
    • 549 views

  24. ESET NOD32 Antivirus software quarantined CCleaner Pro [FALSE POSITIVE]

    By Denis Cloutier,
    • 3 replies
    • 445 views

  25. Version 5.66 has been hijacjed! [FALSE POSITIVE]

    By Jason Hayes,
    • 1 reply
    • 242 views
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