Windows 10: Can't start Windows Defender Antivirus

Discus and support Can't start Windows Defender Antivirus in AntiVirus, Firewalls and System Security to solve the problem; I have a laptop that came with McAfee and Bitdefender software. Both subscriptions expired. I uninstalled both so that I can just use Windows... Discussion in 'AntiVirus, Firewalls and System Security' started by MichaelGiblin1, Jun 23, 2020.

  1. Can't start Windows Defender Antivirus


    I have a laptop that came with McAfee and Bitdefender software. Both subscriptions expired. I uninstalled both so that I can just use Windows defender, but it won't start. I get the following message: "Your Virus & threat protection is managed by your organization". I followed a suggested fix on the Microsoft community forum - getting into the registry editor to the "SecurityHealthService" file, but that did not work. I also read that the previous software could leave a residual code that would prevent Windows Defender from running. Help please!!!

    :)
     
    MichaelGiblin1, Jun 23, 2020
    #1
  2. afornal Win User

    Defender AntiVirus

    There are 4 options under Defender. Two refer to AntiVirus; AntiVirus Network Inspection Service & AntiVirus Services. Under Startup Type these two are listed as manual and the Status column said Inspection Service is running. When I clicked on the Start
    button in Properties, I got an immediate message: "Win.. Def.. Anti.. Serv.. on local comp.. started and then stopped. Some services stop automatically if they are not in use by other services or programs."
     
    afornal, Jun 23, 2020
    #2
  3. Jsssssssss, Jun 23, 2020
    #3
  4. Can't start Windows Defender Antivirus

    Is Windows Defender a proper Antivirus for Windows 10 ?

    1) Yes.

    2) Yes.

    3) Many. Suggestion to use your preferred search engine and look it up. Also see:

    https://support.microsoft.com/en-us/help/18900/consumer-antivirus-software-providers-for-windows


    Suggestion to read:

    ===

    4) Are you spamming?
     
    Jsssssssss, Jun 23, 2020
    #4
Thema:

Can't start Windows Defender Antivirus

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