Turn on Windows Defender protection against Potentially Unwanted Applications (DEPRECATED)
Vérifié avec Microsoft Security Baseline (MSS / SecGuide) 25H2 — mis à jour le 30 juillet 2026
Pris en charge sur : Au moins Windows Server 2016, Windows 10
Chemin dans la console GPO
Configuration ordinateur\Modèles d'administration\MS Security Guide Description
Beginning with Windows 10 v1809 and Windows Server v1809, this functionality should instead be configured through the following Group Policy setting: Computer Configuration\Administrative Templates\Windows Components\Windows Defender Antivirus\Configure detection for potentially unwanted applications.
Registre
HKLM
Software\Policies\Microsoft\Windows Defender\MpEngine Nom de valeur : MpEnablePus
Activé : MpEnablePus = 1
Désactivé : MpEnablePus = 0
MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/MSSecurityGuide/TurnOnWindowsDefenderProtectionAgainstPotentiallyUnwantedApplications Documentation Microsoft Learn Données de correspondance : Microsoft Learn (CC BY 4.0)
Générateur d'exports
BETAConfigurez l'état, la portée et les options, puis générez les sorties .reg, PowerShell, Intune et SCCM — ou ajoutez le paramètre à une collection multi-paramètres.
Ces exports écrivent le registre — ce n'est pas une GPO managée. ⓘ
Fichier .reg
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Turn on Windows Defender protection against Potentially Unwanted Applications (DEPRECATED)
; State: Enabled
; Supported on: Au moins Windows Server 2016, Windows 10
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows Defender\MpEngine]
"MpEnablePus"=dword:00000001Autres formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Turn on Windows Defender protection against Potentially Unwanted Applications (DEPRECATED)
# State: Enabled
# Supported on: Au moins Windows Server 2016, Windows 10
$path = 'HKLM:\Software\Policies\Microsoft\Windows Defender\MpEngine'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'MpEnablePus' -Value 1 -Type DWordIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/MSSecurityGuide/TurnOnWindowsDefenderProtectionAgainstPotentiallyUnwantedApplications
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Turn on Windows Defender protection against Potentially Unwanted Applications (DEPRECATED)
# State: Enabled
# Supported on: Au moins Windows Server 2016, Windows 10
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\MpEngine' -Name 'MpEnablePus' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Turn on Windows Defender protection against Potentially Unwanted Applications (DEPRECATED)
# State: Enabled
# Supported on: Au moins Windows Server 2016, Windows 10
$path = 'HKLM:\Software\Policies\Microsoft\Windows Defender\MpEngine'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'MpEnablePus' -Value 1 -Type DWordScripts SCCM
# Exported from gporais.com
# Policy: Turn on Windows Defender protection against Potentially Unwanted Applications (DEPRECATED)
# State: Enabled
# Supported on: Au moins Windows Server 2016, Windows 10
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Turn on Windows Defender protection against Potentially Unwanted Applications (DEPRECATED)
# State: Enabled
# Supported on: Au moins Windows Server 2016, Windows 10
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows Defender\MpEngine' -Name 'MpEnablePus' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Turn on Windows Defender protection against Potentially Unwanted Applications (DEPRECATED)
# State: Enabled
# Supported on: Au moins Windows Server 2016, Windows 10
$path = 'HKLM:\Software\Policies\Microsoft\Windows Defender\MpEngine'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'MpEnablePus' -Value 1 -Type DWordVous construisez une collection multi-paramètres ? Ajoutez ce paramètre et générez des exports combinés (.reg, PowerShell, GPO).