Windows 10: Microsoft Defender Antivirus Notification: PUA:Win32/PiriformBundler active rated Low

Discus and support Microsoft Defender Antivirus Notification: PUA:Win32/PiriformBundler active rated Low in AntiVirus, Firewalls and System Security to solve the problem; Hello,After running Microsoft Defender Quick Scan and Full Scan appears the above notification. To remove this threat I'm invited to "Start Actions... Discussion in 'AntiVirus, Firewalls and System Security' started by MorganValmont, May 28, 2021.

  1. MORGANVALMONT
    MorganValmont Win User

    Microsoft Defender Antivirus Notification: PUA:Win32/PiriformBundler active rated Low


    Hello,After running Microsoft Defender Quick Scan and Full Scan appears the above notification. To remove this threat I'm invited to "Start Actions Recommend", I do that but nothing happens, so the next time I run a scan the notification always appears.What above happens because I have realized that Start Actions such as:Action optionsO Manual Steps requiredO RemoveO QuarantineO Allow on deviceSee Detailsare missing on my Windows Security.Can someone please help me to fix this issue? Probably telling me how to update virus & Spyware definitions ?Looking forward to hearing from yo

    :)
     
    MorganValmont, May 28, 2021
    #1
  2. ANDRETEN
    AndreTen Win User

    Windows Defender blocking PUA?

    - Notifications. same as other WD notifications (PUA at the beginning of the message)
    - False positives: hard to tell. Have none in a month or so (non PUA detections)
    - PUA blocking is only for file transfers. Nothing to do with ads themselves (only ad injection).

    From MS doc:
    Read more: MS docs: Detect and block potentially unwanted applications
     
    AndreTen, May 28, 2021
    #2
  3. JSSSSSSSSS
    Jsssssssss Win User
    Jsssssssss, May 28, 2021
    #3
  4. BREE
    Bree Win User

    Microsoft Defender Antivirus Notification: PUA:Win32/PiriformBundler active rated Low

    Windows Defender PUA feature?

    I disagree. Enabling PUA protection in Defender will scan anything save to your Downloads folder for PUAs, adware and unwanted browser extensions (things like the Ask Toolbar) stuff you often find bundled within the install packages from some of the sites offering popular software. It's similar to the sort of protection afforded by Malwarebytes Premium (the paid-for one) - real-time protection against PUPs.

    While Microsoft aim PUA protection firmly at the Enterprise environment (and provide Enterprise tools to manage it) it can be enabled on anything, right down to my 10 Home. There's a Tutorial on this....
    Enable or Disable Windows Defender PUA Protection in Windows 10

    ...and starting at post #19 on in that thread I describe my experiences of enabling and testing that it works in Home. I leave it enabled permanently, I've not seen any false detections. Here's some of my test results...


    Microsoft Defender Antivirus Notification: PUA:Win32/PiriformBundler active rated Low [​IMG]
     
    Bree, May 28, 2021
    #4
Thema:

Microsoft Defender Antivirus Notification: PUA:Win32/PiriformBundler active rated Low

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