Windows 10: Windows Defender deactivated and cannot be reactivated

Discus and support Windows Defender deactivated and cannot be reactivated in AntiVirus, Firewalls and System Security to solve the problem; Hi,I cannot start my Windows Defender. I just noticed, it was deactivated for reasons unknown to me. As I suspected a virus or malware could be the... Discussion in 'AntiVirus, Firewalls and System Security' started by Ultimate_Wolverine, Sep 1, 2021.

  1. Windows Defender deactivated and cannot be reactivated


    Hi,I cannot start my Windows Defender. I just noticed, it was deactivated for reasons unknown to me. As I suspected a virus or malware could be the cause, i checked the system with the Malicious Software Removal tool from Microsoft, but it couldn't find anything. Is the deactivation maybe caused by recent Windows updates and if so, how can I restart the defender, since I always get an error that "an unexpected error occured" upon attempting to launch the defender. When looking into a log file, it says:ERROR: MpWDEnableTRUE failed 80070424 MpCmdRun.exe: hr = 0x80070424. MpCmdRun: End Time:

    :)
     
    Ultimate_Wolverine, Sep 1, 2021
    #1

  2. Windows Defender deactivated by Group Policy

    1. For the reasons unknown , my windows defender appears to have been deactivated. It says that is done for the reasons of some Group Policy. No such policy intimation given to me. Can this be reactivated and how soon?

    2. Not able to download any updates for Windows 10.

    Please help.

    Original title: windows defender
     
    Shyamsunder Kukreja, Sep 1, 2021
    #2
  3. Question about Windows Defender Reactivation

    This NURUL HAKIM from Oman. Now, I am using windows 10 in may laptop. I deactivated windows defender in my laptop. Now I want reactivate the windows defender again. But I am unable to do that. My error code: 577.

    Could you anyone please, help me to solve the problem?
     
    NURUL HAKIMNH, Sep 1, 2021
    #3
  4. Windows Defender deactivated and cannot be reactivated

    How can I deactivate the Windows Defender

    Original Title: Windows Defender

    Please tell me how can I deactivate the Windows Defender. I have got Mc Affee to protect my device and it's doing a good job, I don't need a second scan, as it's slowing down my PC and this is very annoying. Please tell me what to do step by step. Thank
    you!
     
    angelicastefan, Sep 1, 2021
    #4
Thema:

Windows Defender deactivated and cannot be reactivated

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