Windows 10: Windows defender is "Turned off by Group Policy"

  1.    18 Jun 2017 #1

    Windows defender is "Turned off by Group Policy"

    I am using Windows 10 Pro. When I launch Windows Defender, it tells that this program had been turned off by group policy. I tried to run as administrator and reinstall Windows Defender, but the problem still persists

      My ComputerSystem Spec

  2.    18 Jun 2017 #2

    Hi, I assume your question is 'How can I enable Windows Defender?'

    Please try this Tutorial, from the extensive Tutorial section, which you're free to browse and search:

    Turn On or Off Windows Defender Real-time Protection in Windows 10 Windows 10 Security System Tutorials
    See Option 4- see if that helps.
      My ComputerSystem Spec

  3. Posts : 10
    Windows 7 Home Basic
       18 Jun 2017 #3


    You need to turn on Windows Defender. Try to use Registry Editor

    1. Open the Registry Editor by holding Windows key + R then type regedit and click OK.
    2. Go to: HKey_Local_Machine\Software\Policies\Microsoft\Windows Defender
    3. Delete DisableAntiSpyware registry key
    4. restart your PC

    Watch this video to learn how to fix this problem in Windows 10

      My ComputerSystem Spec

  4.    18 Jun 2017 #4


    I can't find DisableAntiSpyware in your method. Where's it? But I try method#2 in video, I enable Windows Defender via Group Policy to fix this error.
      My ComputerSystem Spec

  5. Brink's Avatar
    Posts : 32,260
    64-bit Windows 10 Pro build 18242
       18 Jun 2017 #5

    Hello Mink, and welcome to Ten Forums. :)

    The tutorial below can help show you how to enable or disable Windows Defender via group policy to help enable it again.

    Turn On or Off Windows Defender in Windows 10 Windows 10 Security System Tutorials
      My ComputersSystem Spec


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