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Windows Defender Firewall: Prohibit notifications

Verified with Windows 11 25H2 — updated on July 10, 2026

Windows 11 25H2

Supported on: At least Windows XP Professional with SP2

Path in the GPO console

Computer Configuration\Administrative Templates\Network\Network Connections\Windows Defender Firewall\Standard Profile

Description

Prevents Windows Defender Firewall from displaying notifications to the user when a program requests that Windows Defender Firewall add the program to the program exceptions list. If you enable this policy setting, Windows Defender Firewall prevents the display of these notifications. If you disable this policy setting, Windows Defender Firewall allows the display of these notifications. In the Windows Defender Firewall component of Control Panel, the "Notify me when Windows Defender Firewall blocks a new program" check box is selected and administrators cannot clear it. If you do not configure this policy setting, Windows Defender Firewall behaves as if the policy setting were disabled, except that in the Windows Defender Firewall component of Control Panel, the "Notify me when Windows Defender Firewall blocks a new program" check box is selected by default, and administrators can change it.

Registry

HKLM SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile

Value name: DisableNotifications

Enabled: DisableNotifications = 1

Disabled: DisableNotifications = 0

Export Builder

BETA

Configure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.

These exports write the registry — this is not a managed GPO.

.reg file

Windows Registry Editor Version 5.00

; Exported from gporais.com
; Policy: Windows Defender Firewall: Prohibit notifications
; State: Enabled
; Supported on: At least Windows XP Professional with SP2

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile]
"DisableNotifications"=dword:00000001
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Windows Defender Firewall: Prohibit notifications
# State: Enabled
# Supported on: At least Windows XP Professional with SP2

$path = 'HKLM:\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DisableNotifications' -Value 1 -Type DWord

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