Windows 10: threat protection has stopped since update

Discus and support threat protection has stopped since update in Windows 10 Ask Insider to solve the problem; hello i have a big problem. i think windows updates destroyed my windows defender. since the update today ( windows defender v 1.313.1666.0 ) my... Discussion in 'Windows 10 Ask Insider' started by /u/kanink007, Apr 16, 2020.

  1. /U/KANINK007
    /u/kanink007 Win User

    threat protection has stopped since update


    hello

    i have a big problem. i think windows updates destroyed my windows defender. since the update today ( windows defender v 1.313.1666.0 ) my windows defender stops working after 2 min every time. i need to restart it via "services" but agian a few min later it will say again "threat protection has stopped" with a red mark. when i click "restart windows defender" it gives me unexpected error. so starting it only works via "services"

    my hard drive is new and i am an experienced user. yesterday everything worked perfectly. it all started today when i got the notification of an update for windows defender (i get these notifications only if the update seems to be important).

    now i installed kaspersky and made a quick check, and it says everything is clean. kaspersky is permanently working, never turning off. so i assume it is the windows update that destroyed my defender.

    i also tried the disable "turn off windowd defender" in group policies and manually added the DisableAntiSpyware and set it to zero in the registry. on a restarts, strangely that registry entry i added disappeared.

    so yeah. anyone knows how to solve this? or maybe any way to reset windows defender only and make it repair itsel / do the updates a new. or uninstall the previous windows defender update maybe? i couldnt find a way to do so.

    submitted by /u/kanink007
    [link] [comments]

    :)
     
    /u/kanink007, Apr 16, 2020
    #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 23, 2020
    #2
  3. IMWHOMIM
    imwhomim Win User
    Virus and Threat protection

    NOTICE: After, installing 1909 update, Windows Defender, Virus and Threat protection, is / was "OFF". IS this common? Is this a bug? NO MESSAGE appeared in my Notification Area.. ONLY, by chance, did I notice, and turn it back on. I'd suggest.. AT
    ALL TIMES.. 'WHENEVER' MY virus protection is turned off.. BY DEFAULT... I 'SHOULD' BE NOTIFIED! YOUR thoughts on this?
     
    imwhomim, May 23, 2020
    #3
  4. KRZEMIEN
    krzemien Win User

    threat protection has stopped since update

    Cumulative Update KB4520062 Windows 10 v1809 Build 17763.832 - Oct. 15 Win Update

    Well:

    Microsoft Defender Advanced Threat Protection might stop running
    The Microsoft Defender Advanced Threat Protection (ATP) service might stop running and might fail to send reporting data. You might also receive a 0xc0000409 error in Event Viewer on MsSense.exe.
    Affected platforms:

    • Client: Windows 10, version 1809; Windows 10 Enterprise LTSC 2019
    • Server: Windows Server, version 1809; Windows Server 2019
    Next steps: At this time, we suggest that devices in an affected environment do not install KB4520062. We are working on a resolution and estimate a solution will be available in mid-November.

    https://docs.microsoft.com/en-us/win...019#360msgdesc

    (via The second “optional non-security” October cumulative update for Win10 version 1809 breaks MS Defender Advanced Threat Protection @ AskWoody)
     
    krzemien, May 23, 2020
    #4
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threat protection has stopped since update

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