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IMPORTANT: Users are reporting that recent versions of CCleaner do not open when their AV is out of date.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

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6,897 topics in this forum

  1. OOKLA Speedtest bug?

    By jellyroll,
    • 2 replies
    • 140 views

  2. Versions after 5.65.7632 broken

    By bearsound,
    • 9 replies
    • 382 views

  3. Problem with Edge during the scan

    By Christi1,
    • 3 replies
    • 149 views

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

    By Bergster7,
    • 0 replies
    • 194 views

  5. ccleaner closes when minimized to system tray

    By Tom H,
    • 6 replies
    • 1.1k views

  6. CCleaner 5.65.7832 64 bit Health Check Page is blank

    By racydex,
    • 23 replies
    • 643 views

  7. Can't install Update 5.66

    By EricG,
    • 2 replies
    • 390 views

  8. update freezes 1 2

    By centurion,
    • 34 replies
    • 2.8k views

  9. CCleaner not working after update

    By RockyL,
    • 12 replies
    • 1.6k views

  10. nesest download does not work in user mode

    By nontrad,
    • 13 replies
    • 319 views

  11. MS EDGE CHRO REMOVED - STILL IN Cc

    By erincc,
    • 10 replies
    • 247 views

  12. Update failure 1 2 3

    By richardglass,
    • 53 replies
    • 3k views

  13. Ccleaner 5.66

    By sidthefinger,
    • 7 replies
    • 432 views

  14. CCleaner v5.65.7632 Forum and Release Announcement Problems

    By cbaumer0628,
    • 3 replies
    • 310 views

  15. Bas

    By Bas,
    • 1 reply
    • 155 views

  16. Startup Anyway When Disabled

    By alphamachina,
    • 3 replies
    • 161 views

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

    By suveki,
    • 3 replies
    • 366 views

  18. Emisoft and Malwarebytes issue [FALSE POSITIVE]

    By prston,
    • 5 replies
    • 292 views

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

    By Denis Cloutier,
    • 3 replies
    • 268 views

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

    By Jason Hayes,
    • 1 reply
    • 184 views

  21. Won't open after downloading and installing Version 5.65 update

    By MM&I,
    • 11 replies
    • 949 views

  22. Cache Not Clearing on Chrome

    By 2Dogs,
    • 0 replies
    • 121 views

  23. Can't run or uninstall CCleaner

    By JT1,
    • 15 replies
    • 245 views

  24. CCleaner System tray crash

    By Andres Lara,
    • 0 replies
    • 128 views

  25. Cortana cache files and cookies under Microsoft Edge entry?

    By SMalik,
    • 1 reply
    • 367 views

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