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  1.    08 May 2016 #10
    Join Date : Dec 2015
    Athens, Greece
    Posts : 141
    Windows 10 Pro x64

    You're very welcome.

    So I take it that the correct entry should be in the
    HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\MpEngine

      My ComputerSystem Spec
  2.    08 May 2016 #11
    Join Date : Oct 2013
    Posts : 25,641
    64-bit Windows 10 Pro build 17046
    Thread Starter

    Correct.
      My ComputersSystem Spec
  3.    09 Dec 2016 #12
    Join Date : Dec 2016
    Posts : 1
    Windows 10 Enterprise

    Click image for larger version. 

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ID:	112995

    Hi administrator brink
    i am gettin this error
    i have not installed any of the .reg files
    plz help
      My ComputerSystem Spec
  4.    09 Dec 2016 #13
    Join Date : Oct 2013
    Posts : 25,641
    64-bit Windows 10 Pro build 17046
    Thread Starter

    Hello Sammy, and welcome to Ten Forums.

    As a test enable it using the .reg file in Option One to see if that may work better for you.
      My ComputersSystem Spec
  5.    06 Jan 2017 #14
    Join Date : Oct 2016
    Posts : 135
    Microsoft Windows 10 x64

    hello, thanks for the well documented feature (as usual..)
    It is unclear if this works with all version of Windows 10 (core, pro, etc..)
    at least, Microsoft is documented it for Enterprise version
      My ComputerSystem Spec
  6.    06 Jan 2017 #15
    Join Date : Oct 2013
    Posts : 25,641
    64-bit Windows 10 Pro build 17046
    Thread Starter

    Hello Daniel,

    While Microsoft announced the new PUA feature as only available for the Enterprise edition of Windows 10, Home and Pro editions can also enable it on their Windows 10 PCs to block the deployment of adware during software installations.
      My ComputersSystem Spec
  7.    08 May 2017 #16
    Join Date : Feb 2017
    Home
    Posts : 484
    Windows 10 Home x64, V1709 (16299.64)

    As an "update" here, I just enabled PUA protection through Powershell with no error messages during the process. However after the restart Defender was Red "X" tagged & telling me my system was at risk. No explanation. Defender was very slow and sluggish to open. A scan did not clear the issue. After disabling the PUA Protection & a restart, everything is back to normal.
      My ComputersSystem Spec
  8.    11 May 2017 #17
    Join Date : Feb 2017
    Home
    Posts : 484
    Windows 10 Home x64, V1709 (16299.64)

    Another Update: Following Creator's Update and resolution of a minor conflict between WD and Malwarebytes, I've enabled the PUA Protection option again and so far, no issues.

    Thanks to any and all for ...
      My ComputersSystem Spec
  9.    11 May 2017 #18
    Join Date : Oct 2013
    Posts : 25,641
    64-bit Windows 10 Pro build 17046
    Thread Starter

    Great news.
      My ComputersSystem Spec
  10.    02 Jun 2017 #19
    Join Date : Aug 2016
    S/E England
    Posts : 4,710
    10 Home x64 (1709) (10 Pro on 2nd pc)

    Quote Originally Posted by Brink View Post
    While Microsoft announced the new PUA feature as only available for the Enterprise edition of Windows 10, Home and Pro editions can also enable it on their Windows 10 PCs to block the deployment of adware during software installations.
    I can confirm that PUA can be enabled on Home. Testing that it's working can be problematic though. Testing virus detection is easy with the EICAR test file. https://www.microsoft.com/security/p...ICAR_Test_File

    There's no equivalent 'test file' for PUAs that I can find, so to test detection you need something that has a real PUA in it. Turns out that I had one, an installer that I'd downloaded (but never run) back when this PC was running Win7/MSE. This was successfully detected by Defender as https://www.microsoft.com/security/p...DVideoDownload

    However, I noticed a strange 'feature' of Defender's PUA detection. It seems to be turned off for files in my User folder and its subfolders. While the EICAR test shows that viruses are detected there, this PUA had been sitting for years undetected. Copying this installer to anywhere other than my User folder (such as C:\Temp\) results in the PUA being automatically detected.

    Temporarily turning off Defender's real-time protection allowed me to copy the file without detection. Then testing the context menu 'Scan with Windows Defender...' showed the same behaviour. The PUA was detected when the file was in any folder except my User folder. I presume it would be detected regardless of folder as soon as I ran the installer, but I haven't been brave enough to test that yet.

    Is this behaviour by design, do you think? Or could it be a setting inherited from Microsoft Security Essentials that's no longer shown in Defender's settings?
      My ComputersSystem Spec

 
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