Permanently Disable Windows Defender?

topgundcp said:

Since this is a TP. The option to turn off/disable Windows Defender is grayed out. However, you can turn off by:

https://www.tenforums.com/tutorials/5...dows-10-a.html

1. Open Admin Command Prompt and type: gpedit.msc
2. Manoeuver to: Computer Configuration->Administrative Templates->Windows Components->Windows Defender
3. Double click on "Turn Off Windows Defender" and select "Enabled" then click "Apply"

WARNING: After turn off "Windows Defender", you might not be able to turn it back on. I suggest before trying this, make a backup image so you can restore to the way it was.

Attachment 18429

My problem was: clicking on a program (application) took a long time to open. I traced the source of this problem to Defender. I will not go into the gaudy details of the countless hours to somehow correct it. Then I stumbled upon your thread to Permanently Disable Windows Defender. Once disabled, all my problems disappeared.
Thank you again.
Incredable1

topgundcp said:

Since this is a TP. The option to turn off/disable Windows Defender is grayed out. However, you can turn off by:

https://www.tenforums.com/tutorials/5...dows-10-a.html

1. Open Admin Command Prompt and type: gpedit.msc
2. Manoeuver to: Computer Configuration->Administrative Templates->Windows Components->Windows Defender
3. Double click on "Turn Off Windows Defender" and select "Enabled" then click "Apply"

WARNING: After turn off "Windows Defender", you might not be able to turn it back on. I suggest before trying this, make a backup image so you can restore to the way it was.

Attachment 18429

Above method is pretty simple and it disabled my windows 10 defender thing. Which I hate. Hehe.

topgundcp said:

Since this is a TP. The option to turn off/disable Windows Defender is grayed out...

Thank You

I'm on latest Dev edition after the anniversary update and simply used a defender script for regedit to turn it off, you might still get updates for it but they fail download. I turned them off in group policy so now I never see anything defender related ever now. I use malwarebytes and avast in tandem and it's worked perfectly for years. Win Defender is a useless app IMO and almost any malware or virus knows how to get around it. First thing I disable on a new install, it's a joke.

Since version 1803, is this still the best method to permanently disable Windows Defender Security Center?

I noticed here that it can also be done via Group Policy.

Thanks for the confirmation, Brink.
I linked to that in my previous post. All good.

Hi @Brink

The Tamper Protection is turned on by default. I have tied to disable the Windows Defender but Tamper Protection feature deleting all the registry keys here's my batch script.

Code:

@Echo Off

net sess>nul 2>&1||(powershell start cmd -ArgumentList """/c %~0""" -verb Runas & exit)

:_Start
Cls & Mode CON  LINES=11 COLS=60 & Color 0E &Title Created By FreeBooter
Echo.
Echo.       
Echo         Type (D) letter to Disable Windows Defender   
Echo.       
Echo.
Echo.
Echo.         
Echo         Type (E) letter to Enable Windows Defender    
Echo.         



Set /p input= RESPONSE: 
If /i  Not %input%==D (Goto :_Ex) Else (Goto :_Disbale)

:_Ex
If /i  Not %input%==E  (Goto :_Start) Else (Goto :_Enable)





:_Disbale
:: Disable Windows Defender with  Group Policy. 
Reg.exe add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d "1" /f
Reg.exe add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /v "DisableRealtimeMonitoring" /t REG_DWORD /d "1" /f
Reg.exe add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableBehaviorMonitoring" /t REG_DWORD /d "1" /f
Reg.exe add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableOnAccessProtection" /t REG_DWORD /d "1" /f
Reg.exe add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableScanOnRealtimeEnable" /t REG_DWORD /d "1" /f
Reg.exe add "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableBehaviorMonitoring" /t REG_DWORD /d "1" /f


Cls & Mode CON  LINES=5 COLS=49 & Color 0E & Title - WARNING -
 Echo.
 Echo. 
 Echo            Windows Defender Disabled
Ping -n 5  localhost > Nul
Cls
Goto :Reboot


:_Enable
:: Enable Windows Defender with  Group Policy.
 
Reg.exe delete "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender" /f


Cls & Mode CON  LINES=5 COLS=49 & Color 0E & Title - WARNING -
 Echo.
 Echo. 
 Echo            Windows Defender Enabled

Ping -n 5  localhost > Nul
Cls



:Reboot 
CHOICE /C YN /M "Press Y to Reboot, N for exiting script."


If %errorlevel% == 1 ( Shutdown /r /t 0) Else (Exit)