Windows 10: CCleaner Identified as PUA

Discus and support CCleaner Identified as PUA in AntiVirus, Firewalls and System Security to solve the problem; Windows Defender identified CCleaner (current version) as PUA during a full scan today. Thoughts ? 161534 Discussion in 'AntiVirus, Firewalls and System Security' started by pericles, Jul 28, 2020.

  1. pericles Win User

    CCleaner Identified as PUA

    Windows Defender identified CCleaner (current version) as PUA during a full scan today.

    Thoughts ?

    pericles, Jul 28, 2020

  2. ccleaner

    Does anyone use ccleaner?? I know some people that use it and say its amazing! Any suggestions on a better small scale computer cleaner?
    michaeltyson, Jul 28, 2020
  3. CCleaner

    > Is it safe to install ccleaner on my pc?


    Piriform (the maker of CCleaner etc) was bought by Avast in July 2017 and there was this nasty incident...

    All CCleaner versions are bundling Avast AV and/or various Google products such as Google Chrome, a Google toolbar and possibly other products....

    Microsoft Community has seen quite a few of related threads.

    Recently more and more threads are popping up in the Piriform/CCleaner forum which hint at even more questionable methods...

    Here are a few recent example threads:

    IMO, CCleaner is not unproblematic and has to be treated carefully.

    I, personally, would not recommend CCleaner to inexperienced and/or not so tech-savvy persons...

    Suggestion to inform yourself before installing CCleaner (or any other product) and to always, always keep your eyes wide open during installation (watch out for any bundled softwares etc etc).

    You also might want to read this article (in case you don't use an ad blocker: ignore all advertisements):

    WRT to CCleaner on Windows 10:

    According to
    post Windows 10 blocks older versions: "CC v5.27 and older, (or somewhere around there) are no longer deemed safe by MS and automatically blocked when starting."


    Jsssssssss, Jul 28, 2020
  4. kado897 Win User

    CCleaner Identified as PUA

    Latest CCleaner Version Released

    Thanks Mike.
    kado897, Jul 28, 2020

CCleaner Identified as PUA

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