Masquer toutes les notifications
Vérifié avec Windows 11 25H2 — mis à jour le 30 juillet 2026
Pris en charge sur : Windows Server 2016, Windows 10 version 1709 ou versions supérieures
Chemin dans la console GPO
Configuration ordinateur\Modèles d'administration\Composants Windows\Sécurité Windows\Notifications Description
Masquez les notifications dans Sécurité Windows. Activé : Les utilisateurs locaux ne verront pas les notifications dans Sécurité Windows. Désactivé : Les utilisateurs locaux peuvent voir les notifications dans Sécurité Windows. Non configuré : Identique à Désactivé.
Registre
HKLM
SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications Nom de valeur : DisableNotifications
Activé : DisableNotifications = 1
Désactivé : DisableNotifications = 0
MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/WindowsDefenderSecurityCenter/DisableNotifications Documentation Microsoft Learn Données de correspondance : Microsoft Learn (CC BY 4.0)
Valeurs CSP
-
0 (Default)- (Disable) The users can see the display of Windows Defender Security Center notifications. -
1- (Enable) The users can't see the display of Windows Defender Security Center notifications.
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: Masquer toutes les notifications
; State: Enabled
; Supported on: Windows Server 2016, Windows 10 version 1709 ou versions supérieures
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications]
"DisableNotifications"=dword:00000001Autres formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Masquer toutes les notifications
# State: Enabled
# Supported on: Windows Server 2016, Windows 10 version 1709 ou versions supérieures
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DisableNotifications' -Value 1 -Type DWordIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/WindowsDefenderSecurityCenter/DisableNotifications
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Masquer toutes les notifications
# State: Enabled
# Supported on: Windows Server 2016, Windows 10 version 1709 ou versions supérieures
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications' -Name 'DisableNotifications' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Masquer toutes les notifications
# State: Enabled
# Supported on: Windows Server 2016, Windows 10 version 1709 ou versions supérieures
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DisableNotifications' -Value 1 -Type DWordScripts SCCM
# Exported from gporais.com
# Policy: Masquer toutes les notifications
# State: Enabled
# Supported on: Windows Server 2016, Windows 10 version 1709 ou versions supérieures
# 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: Masquer toutes les notifications
# State: Enabled
# Supported on: Windows Server 2016, Windows 10 version 1709 ou versions supérieures
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications' -Name 'DisableNotifications' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Masquer toutes les notifications
# State: Enabled
# Supported on: Windows Server 2016, Windows 10 version 1709 ou versions supérieures
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DisableNotifications' -Value 1 -Type DWordVous construisez une collection multi-paramètres ? Ajoutez ce paramètre et générez des exports combinés (.reg, PowerShell, GPO).