[DISCUSSION] Disabling Microsoft Defender Antivirus (formerly Windows Defender)

Discussion in 'Windows 11' started by Espionage724, Oct 29, 2021.

  1. vladnil

    vladnil MDL Senior Member

    Jan 19, 2019
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  2. mannyhi

    mannyhi MDL Novice

    Apr 3, 2025
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    is that necessary if i cloned the repo in visual studio and did build and ran defendnot-loader.exe? also, it doesn't remove but disable. i was hoping this would help lower the memory usage of microsoft defender's processes but it only did by a little...disappointed, wanted to tweak my 8 gig ram lappy
     
  3. marko41297

    marko41297 MDL Novice

    Jul 19, 2015
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    Hello everyone.
    I have a question. I apologize if this was answered before.
    What is the PROPER way right now to disable defender and automatic updates?
     
  4. amajmon

    amajmon MDL Senior Member

    Sep 21, 2012
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  5. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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  6. TairikuOkami

    TairikuOkami MDL Expert

    Mar 15, 2014
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    You have probably disabled Security Center? Technically, it has nothing to do with security, in the past it was called Action/Notification center.
    It takes several seconds to load, because Settings is a scripted UWP app now, but it might be the result of disabled Security Center.
     

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  7. TairikuOkami

    TairikuOkami MDL Expert

    Mar 15, 2014
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    MS is pushing back again with the latest engine. Microsoft Defender Core Service has become more persistent and runs when disabled, but it does not interfere with disabled Defender, yet.
     

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  8. haris_mdlf69

    haris_mdlf69 MDL Addicted

    Oct 23, 2018
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    That's why I'm not in favor of frequently installing Microsoft Defender platform updates—either don't disable it in the first place, or, if you do, make sure it's disabled permanently.
     
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  9. TairikuOkami

    TairikuOkami MDL Expert

    Mar 15, 2014
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    Well, I am on Insider, so I have to disable like every week. But Core service is no longer running on 27871, so maybe it was just a bug on 27868? :pardon:
     
  10. vladnil

    vladnil MDL Senior Member

    Jan 19, 2019
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    Windows 11 build 27871 booted via Life CD flash drive
    Used the Everything program by typing in the search

    SecHealthUI
    SecurityHealthSystray
    NisSrv
    WdNisSvc
    MpAsDesc
    defender
    WindowsAI
    Windows AI
    StartMenuExperienceHost (Start menu) immediately replace with an alternative before deleting.
    copilot
    WinDefend
    regrecall
    CoreAI
    EDGE

    After that I press delete everything I see.
    I reboot the machine and see
    Windows booting in 4 seconds

    Everything flies, and most importantly it works.
    No need to disable anything in the registry, this infection turns on anyway.

    Physically destroy the fascist scum at the root, crush the vermin.
    Before deleting, guys, make a backup of the entire system!
     
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  11. RanCorX2

    RanCorX2 MDL Expert

    Jul 19, 2009
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    i used to remove stuff from windows but i learnt it causes more issues than it's worth. i just disable stuff i don't use or require, rather than delete.
    the only things i remove now are the junk apps.

    disabling is the safest option. all the stuff the last user just listed can just be disabled / ignored. registry and registry policies takes care off everything. but for defender toggle defender is the best option right now.
     
  12. Dark Vador

    Dark Vador X Æ A-12

    Feb 2, 2011
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    you can remove all defender foler, and if not delete, move to temp folder, reboot computer --> maybe update will fail
     
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  13. BetaTesta

    BetaTesta MDL Senior Member

    Aug 6, 2022
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    Where to get this one?
     
  14. pm67310

    pm67310 MDL Guru

    Sep 6, 2011
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  15. drew84

    drew84 MDL Expert

    Mar 13, 2014
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    The initial question was, where to find (answered)
    as to its relevence, @RanCorX2's recommendation would suggest it still is.

    I personally don't have an issue with defender
    my only interest in this thread is, to keep up with current solutions
    should the need to remove defender arise on other machines that I work on... but thank you for the thought.