Windows 10: Can't use defender anitvirus

Discus and support Can't use defender anitvirus in AntiVirus, Firewalls and System Security to solve the problem; virus threat. but can't run recommended actions. virus and threat protection settings. it says "unknown" virus and threat protection updates. it says... Discussion in 'AntiVirus, Firewalls and System Security' started by martin cFB, Aug 10, 2020.

  1. Can't use defender anitvirus


    virus threat. but can't run recommended actions.

    virus and threat protection settings. it says "unknown"

    virus and threat protection updates. it says "unknown", "not available".


    [ Moved from Microsoft 365 or Office 365 for admins / Security and compliance / Microsoft 365 Apps or Office 365 Business ]

    :)
     
    martin cFB, Aug 10, 2020
    #1
  2. Jay Jap Win User

    Windows Defender Anitvirus

    Hello,

    There are multiple reasons why you are having issues, enabling Windows Defender. To assist you with your concern, you can refer to
    PrashantKumar96's
    Forum Article
    on how to fix Windows Defender not starting.

    We suggest that you try the troubleshooting steps listed there, especially the number six troubleshooting step.

    Let us know of the outcome.

    Regards.
     
    Jay Jap, Aug 10, 2020
    #2
  3. Sasqui Win User
    Overclocking / Undervolting guide for Vega 56 or 64?

    Here's a quick laundry list:

    List of software to use for overclocking and testing
    Examples:
    Wattman (and how to find and use it, like an overview, including profiles)
    Unigine Valley or Heaven (use this for quick testing while changing settings in Wattman and checking for stability / artifacts) ...just suggesting this
    How to monitor cores / mem speeds and temps during testing (I've seen screen overlays, and others using GPUz)

    Step-by step overclocking in Wattman
    Fan speeds
    Power limit
    Temp limit
    Voltages
    Core speeds
    Memory speeds
     
    Sasqui, Aug 10, 2020
    #3
  4. Can't use defender anitvirus

    Windows Defender problem

    Hi Ernst,

    To troubleshoot this issue, we suggest that you check the Windows Defender service if it's running. If you are using a third party spyware/malware program, it may disable the Windows Defender service. To do this, please follow the steps below:

    • Press Windows + R key.
    • Type services.msc.
    • Right-click Windows Defender service and click
      Start.

    Let us know the result.
     
    Rafael Com, Aug 10, 2020
    #4
Thema:

Can't use defender anitvirus

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