Windows 10: Windows Defender Virus and threat protection stopped

Discus and support Windows Defender Virus and threat protection stopped in AntiVirus, Firewalls and System Security to solve the problem; Pressing the restart button just leads to an error that leads to nothing. I don't have any 3rd party antivirus software either... Discussion in 'AntiVirus, Firewalls and System Security' started by CoolHanks, May 9, 2021.

  1. COOLHANKS
    CoolHanks Win User

    Windows Defender Virus and threat protection stopped


    Pressing the restart button just leads to an error that leads to nothing. I don't have any 3rd party antivirus software either

    :)
     
    CoolHanks, May 9, 2021
    #1
  2. JCH54
    JCH54 Win User

    virus and threat protection

    Virus and threat protection has stopped and will not restart, Windows 10 ver 1709, antimalware client ver 4.12.16299.15 . SuperAntiSpyware installed.

    I have tried most of the suggestions from the support pages, all have been ineffective. Any suggestions

    Moved from: Virus and Malware / Windows Defender / Updating Virus and Spyware Definitions / Windows 10
     
    JCH54, May 9, 2021
    #2
  3. MECHTENGINEER
    MechtEngineer Win User
    Cannot turn on Windows Defender virus protection

    I had the same sort of symptoms. In the Windows Security Center, under Virus and threat protection, it said "Your virus & threat protection is managed by your organization."


    Windows Defender Virus and threat protection stopped wm5Jc.png


    I note you mentioned the Registry Keys under HKLM/SOFTWARE/Microsoft/Windows Defender. Nice spotting, but it seems like there is another key that is causing the problem for some users.

    Steps to a solution:

    1. Press the Windows key and type "regedit"
    2. On the regedit icon that appears, right-click and select Run as Administrator.
    3. Navigate to the folder located at HKLM\SOFTWARE\Policies\Microsoft\Windows Defender (You can paste this into the address box at the top of the window, or navigate manually using the side directory structure)
    4. In this folder, there are probably two keys. Right-click and Delete the DisableAntiSpyware key.
    5. Exit regedit, and return to the Windows Defender settings screen (refresh it if necessary). Windows Defender should have the scan options available and working.

    Solution adapted from here, with a much more detailed solution here.
     
    MechtEngineer, May 9, 2021
    #3
  4. GREGINMICH
    GreginMich Win User

    Windows Defender Virus and threat protection stopped

    Window Defender's virus & threat protection service has stopped

    There seems to have been a hiccup in the Patch Tuesday updates that might need to be resolved with some unconventional methods of restarting the Threat Service (Windows Defender Antivirus Service):



    Windows Defender - Virus & Threat Protection - Restart Now
     
    GreginMich, May 9, 2021
    #4
Thema:

Windows Defender Virus and threat protection stopped

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