Windows 10: Unable to update or manage Windows Defender

Discus and support Unable to update or manage Windows Defender in AntiVirus, Firewalls and System Security to solve the problem; For the past few months, I've repeatedly been unable to update Windows Defender or run any virus scans on my own. After selecting Virus & Threat... Discussion in 'AntiVirus, Firewalls and System Security' started by ToddMoss1, Jan 21, 2019.

  1. ToddMoss1 Win User

    Unable to update or manage Windows Defender


    For the past few months, I've repeatedly been unable to update Windows Defender or run any virus scans on my own. After selecting Virus & Threat Protection, I receive the same "your virus and threat protection is managed by your organization". This a privately owned PC and I'm the administrator so what it going on? I just completed several hours upgrading to Version 1809 today with no change in my situation with Windows Defender. I'm very concerned about whether my PC is actually protected. Can anyone offer any ideas?

    :)
     
    ToddMoss1, Jan 21, 2019
    #1
  2. jsfitz54 Win User

    Windows 10 Anniversary Update Issues

    Problems with W10 Anniv auto update:

    Mom's: (x58 Xeon 5677) Windows Defender was not turned back on automatically (it was "on" in the 1511 edition) and she had a Trojan. Full system scan to eradicate.
    Her Epson printer was knocked off, had to uninstall by Device Manager pull USB cable and reconnect cable. W10 did the rest.

    Step-mom's: (HP pre built) Windows Defender not turned back on by default. Her USB Seagate Expansion Drive 2Tb was offline so all backup routines were halted. Had to rerun backup plan. Had her do a full virus scan.

    Step-dad's: (Dell Optiplex tweaked upgrades) Windows Defender not turned back on by default. Full Scan.
     
    jsfitz54, Jan 21, 2019
    #2
  3. davidhk Win User
    Windows Defender disabled and is unable to start


    OK. I am not sure if you can complete the steps below.......................
    In the search box, type services.msc > Enter
    Items in the Services box are listed alphabetically.
    Scroll down to Windows Defender Service...........................
    at Status heading, it should be.................................... Running
    at Startup type, it should be......................................... Automatic


    Unable to update or manage Windows Defender [​IMG]




    If that is not what yours said, right click at Windows Defender Service > click Properties >
    can you change the Startup type to Automatic and Service status to Start ?
    If yes, do so and click OK when done.
     
    davidhk, Jan 21, 2019
    #3
  4. Unable to update or manage Windows Defender

    Unable to turn off Windows Defender

    Hello,

    Thank you for posting your query on Microsoft Community.

    As per description, you are unable to turn off windows defender.

    I suggest you try restarting Windows Defender service and check if issue is resolved. To do so kindly follow the below given steps:

    • Press Windows key + X key and type services.msc,
      hit enter.
    • Search Windows Defender Service.:1) Windows Defender Service ; 2)
      Windows Defender Network.
    • Right click on each and press Start.
    • Restart your computer and check if issue persist.

    Hope this information is helpful. Please do let us know if you need further assistance with Windows, we’ll be glad to assist you.
     
    Ashish Sondhi, Jan 21, 2019
    #4
Thema:

Unable to update or manage Windows Defender

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