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Disable Defender Antivirus remote experimentation and configurations

Overview​

About this script

This script improves your privacy on Windows.

These changes use Windows system commands to update your settings.

This script disables the remote configurations and experimentation features of the Microsoft Defender Core service.

It enhances privacy by limiting the data Microsoft collects about your system and usage habits. It may improve system performance by reducing background processes related to these features. Disabling this feature may affect Microsoft's ability to improve the Defender product 1.

This script specifically targets the Microsoft Defender Core Service. This service is a part of Defender Antivirus and Defender for Endpoint products 2. It contributes to the stability and performance of these products 2.

This service connects to Microsoft servers to receive remote configurations, manage feature rollouts, and participate in experiments 1.

Disabling these features prevents:

  • Remote configurations: Settings such as feature flags configured by Microsoft on your computer 1.
  • Controlled feature rollouts: Gradual introduction of new features to subsets of users 1.
  • Experiments: Trials of experimental features.

Technical Details​

This script configures:

  • HKLM\Software\Policies\Microsoft\Windows Defender\Features!DisableCoreServiceECSIntegration registry key to set the Group Policy Object (GPO) 2.
  • DisableCoreService1DSTelemetry preference using the Defender CLI 2.
  • HKLM\SOFTWARE\Microsoft\Windows Defender\CoreService!DisableCoreServiceECSIntegration registry key to control this feature. While this registry key is present by default in recent versions of Windows, it lacks official documentation from Microsoft.

This script uses Batch (batchfile) scripting language.

Use with Caution

This script is only recommended if you understand its implications. Some non-critical or features may no longer function correctly after running this script.

Implementation Details

  • Language: batch

  • Required Privileges: Administrator rights

  • Compatibility: Windows only

  • Reversibility: Can be undone using provided revert script

Explore Categories​

This action belongs to Disable Defender data collection category. This category features scripts designed to reduce or eliminate data collection by Defender. Disabling these features enhances privacy by limiting the information shared with Microsoft. Although Microsoft Defender offers security benefits, it also collects data for analysis, service improvement,... Read more on category page ▶

Apply now​

Choose one of three ways to apply:

  1. Automatically via privacy.sexy: The easiest and safest option.
  2. Manually by downloading: Requires downloading a file.
  3. Manually by copying: Advanced flexibility.

Alternative 1. Apply with Privacy.sexy​

privacy.sexy is free and open-source application that lets securely apply this action easily.

Open privacy.sexy

You can fully restore this action (revert back to the original behavior) using the application.

privacy.sexy instructions
  1. Open or download the desktop application
  2. Search for the script name: Disable Defender Antivirus remote experimentation and configurations.
  3. Check the script by clicking on the checkbox.
  4. Click on Run button at the bottom of the page.

Alternative 2. Download​

Irreversible Changes

This script is irreversible, meaning there is no straightforward method to restore changes once applied. Exercise caution before running, restoring it may not be possible.

  1. Download the script file by clicking on the button below:

    Download script

  2. Run the script file by clicking on it.

Download revert script​

This file restores your system to its original state, before this script is applied.

Download restore script

Alternative 3. Copy​

This is for advanced users. Consider automatically applying or downloading the script for simpler way.

  1. Open Command Prompt as administrator.
HELP: Step-by-step guide

  1. Click on Start menu

  2. Type cmd

  3. Right click on Command Prompt select Run as administrator

  4. Click on Yes to run Command Prompt

Animation showing how to open terminal as administrator on Windows 11

  1. Copy the following code:
Code to apply changes
PowerShell -ExecutionPolicy Unrestricted -Command "$propertyName = 'DisableCoreServiceECSIntegration'; $value = $False; if((Get-MpPreference -ErrorAction Ignore).$propertyName -eq $value) { Write-Host "^""Skipping. `"^""$propertyName`"^"" is already `"^""$value`"^"" as desired."^""; exit 0; }; $command = Get-Command 'Set-MpPreference' -ErrorAction Ignore; if (!$command) { Write-Warning 'Skipping. Command not found: "^""Set-MpPreference"^"".'; exit 0; }; if(!$command.Parameters.Keys.Contains($propertyName)) { Write-Host "^""Skipping. `"^""$propertyName`"^"" is not supported for `"^""$($command.Name)`"^""."^""; exit 0; }; try { Invoke-Expression "^""$($command.Name) -Force -$propertyName `$value -ErrorAction Stop"^""; Set-MpPreference -Force -DisableCoreServiceECSIntegration $value -ErrorAction Stop; Write-Host "^""Successfully set `"^""$propertyName`"^"" to `"^""$value`"^""."^""; exit 0; } catch { if ( $_.FullyQualifiedErrorId -like '*0x800106ba*') { Write-Warning "^""Cannot $($command.Name): Defender service (WinDefend) is not running. Try to enable it (revert) and re-run this?"^""; exit 0; } elseif (($_ | Out-String) -like '*Cannot convert*') { Write-Host "^""Skipping. Argument `"^""$value`"^"" for property `"^""$propertyName`"^"" is not supported for `"^""$($command.Name)`"^""."^""; exit 0; } else { Write-Error "^""Failed to set using $($command.Name): $_"^""; exit 1; }; }"
:: Set the registry value: "HKLM\Software\Policies\Microsoft\Windows Defender\Features!DisableCoreServiceECSIntegration"
PowerShell -ExecutionPolicy Unrestricted -Command "$registryPath = 'HKLM\Software\Policies\Microsoft\Windows Defender\Features'; $data = '1'; reg add 'HKLM\Software\Policies\Microsoft\Windows Defender\Features' /v 'DisableCoreServiceECSIntegration' /t 'REG_DWORD' /d "^""$data"^"" /f"
:: Set the registry value: "HKLM\SOFTWARE\Microsoft\Windows Defender\CoreService!DisableCoreServiceECSIntegration"
PowerShell -ExecutionPolicy Unrestricted -Command "function Invoke-AsTrustedInstaller($Script) { $principalSid = [System.Security.Principal.SecurityIdentifier]::new('S-1-5-80-956008885-3418522649-1831038044-1853292631-2271478464'); $principalName = $principalSid.Translate([System.Security.Principal.NTAccount]); $streamFile = New-TemporaryFile; $scriptFile = New-TemporaryFile; try { $scriptFile = Rename-Item -LiteralPath $scriptFile -NewName ($scriptFile.BaseName + '.ps1') -Force -PassThru; $Script | Out-File $scriptFile -Encoding UTF8; $taskName = "^""privacy$([char]0x002E)sexy invoke"^""; schtasks.exe /delete /tn $taskName /f 2>&1 | Out-Null; $executionCommand = "^""powershell.exe -ExecutionPolicy Bypass -File '$scriptFile' *>&1 | Out-File -FilePath '$streamFile' -Encoding UTF8"^""; $action = New-ScheduledTaskAction -Execute 'powershell.exe' -Argument "^""-ExecutionPolicy Bypass -Command `"^""$executionCommand`"^"""^""; $settings = New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries; Register-ScheduledTask -TaskName $taskName -Action $action -Settings $settings -Force -ErrorAction Stop | Out-Null; try { ($scheduleService = New-Object -ComObject Schedule.Service).Connect(); $scheduleService.GetFolder('\').GetTask($taskName).RunEx($null, 0, 0, $principalName) | Out-Null; $timeout = (Get-Date).AddMinutes(5); Write-Host "^""Running as $principalName"^""; while ((Get-ScheduledTaskInfo $taskName).LastTaskResult -eq 267009) { Start-Sleep -Milliseconds 200; if ((Get-Date) -gt $timeout) { Write-Warning 'Skipping: Timeout'; break; }; }; if (($result = (Get-ScheduledTaskInfo $taskName).LastTaskResult) -ne 0) { Write-Error "^""Failed, due to exit code: $result."^""; } } finally { schtasks.exe /delete /tn $taskName /f | Out-Null; }; Get-Content $streamFile } finally { Remove-Item $streamFile, $scriptFile; }; }; $cmd = '$registryPath = ''HKLM\SOFTWARE\Microsoft\Windows Defender\CoreService'''+"^""`r`n"^""+'$data = ''1'''+"^""`r`n"^""+''+"^""`r`n"^""+'reg add ''HKLM\SOFTWARE\Microsoft\Windows Defender\CoreService'' `'+"^""`r`n"^""+'    /v ''DisableCoreServiceECSIntegration'' `'+"^""`r`n"^""+'    /t ''REG_DWORD'' `'+"^""`r`n"^""+'    /d "^""$data"^"" `'+"^""`r`n"^""+'    /f'; Invoke-AsTrustedInstaller $cmd"
  1. Right click on command prompt to paste it.
  2. Press Enter to apply remaining code.

Copy restore code​

Copy and run the following code to restore changes:

Revert code
PowerShell -ExecutionPolicy Unrestricted -Command "$propertyName = 'DisableCoreServiceECSIntegration'; $defaultValue = $True; $setDefaultOnWindows10 = $true <# $false #>; $setDefaultOnWindows11 =  $false; $osVersion = [System.Environment]::OSVersion.Version; function Test-IsWindows10 { ($osVersion.Major -eq 10) -and ($osVersion.Build -lt 22000) }; function Test-IsWindows11 { ($osVersion.Major -gt 10) -or (($osVersion.Major -eq 10) -and ($osVersion.Build -ge 22000)) }; <# ------ Set-MpPreference ------ #>; if(($setDefaultOnWindows10 -and (Test-IsWindows10)) -or ($setDefaultOnWindows11 -and (Test-IsWindows11))) { if((Get-MpPreference -ErrorAction Ignore).$propertyName -eq $defaultValue) { Write-Host "^""Skipping. `"^""$propertyName`"^"" is already configured as desired `"^""$defaultValue`"^""."^""; exit 0; }; $command = Get-Command 'Set-MpPreference' -ErrorAction Ignore; if (!$command) { Write-Warning 'Skipping. Command not found: "^""Set-MpPreference"^"".'; exit 1; }; if(!$command.Parameters.Keys.Contains($propertyName)) { Write-Host "^""Skipping. `"^""$propertyName`"^"" is not supported for `"^""$($command.Name)`"^""."^""; exit 0; }; try { Invoke-Expression "^""$($command.Name) -Force -$propertyName `$defaultValue -ErrorAction Stop"^""; Write-Host "^""Successfully restored `"^""$propertyName`"^"" to its default `"^""$defaultValue`"^""."^""; exit 0; } catch { if ($_.FullyQualifiedErrorId -like '*0x800106ba*') { Write-Warning "^""Cannot $($command.Name): Defender service (WinDefend) is not running. Try to enable it (revert) and re-run this?"^""; } else { Write-Error "^""Failed to set using $($command.Name): $_"^""; }; exit 1; }; }; <# ------ Remove-MpPreference ------ #>; $command = Get-Command 'Remove-MpPreference' -ErrorAction Ignore; if (!$command) { Write-Warning 'Skipping. Command not found: "^""Remove-MpPreference"^"".'; exit 1; }; if(!$command.Parameters.Keys.Contains($propertyName)) { Write-Host "^""Skipping. `"^""$propertyName`"^"" is not supported for `"^""$($command.Name)`"^""."^""; exit 0; }; try { Invoke-Expression "^""$($command.Name) -Force -$propertyName -ErrorAction Stop"^""; Write-Host "^""Successfully restored `"^""$propertyName`"^"" to its default."^""; exit 0; } catch { if ($_.FullyQualifiedErrorId -like '*0x800106ba*') { Write-Warning "^""Cannot $($command.Name): Defender service (WinDefend) is not running. Try to enable it (revert) and re-run this?"^""; } else { Write-Error "^""Failed to set using $($command.Name): $_"^""; }; exit 1; }"
:: Delete the registry value "HKLM\Software\Policies\Microsoft\Windows Defender\Features!DisableCoreServiceECSIntegration"
PowerShell -ExecutionPolicy Unrestricted -Command "reg delete 'HKLM\Software\Policies\Microsoft\Windows Defender\Features' /v 'DisableCoreServiceECSIntegration' /f 2>$null"
:: Set the registry value "HKLM\SOFTWARE\Microsoft\Windows Defender\CoreService!DisableCoreServiceECSIntegration"
PowerShell -ExecutionPolicy Unrestricted -Command "function Invoke-AsTrustedInstaller($Script) { $principalSid = [System.Security.Principal.SecurityIdentifier]::new('S-1-5-80-956008885-3418522649-1831038044-1853292631-2271478464'); $principalName = $principalSid.Translate([System.Security.Principal.NTAccount]); $streamFile = New-TemporaryFile; $scriptFile = New-TemporaryFile; try { $scriptFile = Rename-Item -LiteralPath $scriptFile -NewName ($scriptFile.BaseName + '.ps1') -Force -PassThru; $Script | Out-File $scriptFile -Encoding UTF8; $taskName = "^""privacy$([char]0x002E)sexy invoke"^""; schtasks.exe /delete /tn $taskName /f 2>&1 | Out-Null; $executionCommand = "^""powershell.exe -ExecutionPolicy Bypass -File '$scriptFile' *>&1 | Out-File -FilePath '$streamFile' -Encoding UTF8"^""; $action = New-ScheduledTaskAction -Execute 'powershell.exe' -Argument "^""-ExecutionPolicy Bypass -Command `"^""$executionCommand`"^"""^""; $settings = New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries; Register-ScheduledTask -TaskName $taskName -Action $action -Settings $settings -Force -ErrorAction Stop | Out-Null; try { ($scheduleService = New-Object -ComObject Schedule.Service).Connect(); $scheduleService.GetFolder('\').GetTask($taskName).RunEx($null, 0, 0, $principalName) | Out-Null; $timeout = (Get-Date).AddMinutes(5); Write-Host "^""Running as $principalName"^""; while ((Get-ScheduledTaskInfo $taskName).LastTaskResult -eq 267009) { Start-Sleep -Milliseconds 200; if ((Get-Date) -gt $timeout) { Write-Warning 'Skipping: Timeout'; break; }; }; if (($result = (Get-ScheduledTaskInfo $taskName).LastTaskResult) -ne 0) { Write-Error "^""Failed, due to exit code: $result."^""; } } finally { schtasks.exe /delete /tn $taskName /f | Out-Null; }; Get-Content $streamFile } finally { Remove-Item $streamFile, $scriptFile; }; }; $cmd = '$revertData = ''0'''+"^""`r`n"^""+'    '+"^""`r`n"^""+'    reg add ''HKLM\SOFTWARE\Microsoft\Windows Defender\CoreService'' `'+"^""`r`n"^""+'        /v ''DisableCoreServiceECSIntegration'' `'+"^""`r`n"^""+'        /t ''REG_DWORD'' `'+"^""`r`n"^""+'        /d "^""$revertData"^"" `'+"^""`r`n"^""+'        /f'; Invoke-AsTrustedInstaller $cmd"

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