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Windows Defender Firewall: Protect all network connections

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\Domain Profile

Description

Turns on Windows Defender Firewall. If you enable this policy setting, Windows Defender Firewall runs and ignores the "Computer Configuration\Administrative Templates\Network\Network Connections\Prohibit use of Internet Connection Firewall on your DNS domain network" policy setting. If you disable this policy setting, Windows Defender Firewall does not run. This is the only way to ensure that Windows Defender Firewall does not run and administrators who log on locally cannot start it. If you do not configure this policy setting, administrators can use the Windows Defender Firewall component in Control Panel to turn Windows Defender Firewall on or off, unless the "Prohibit use of Internet Connection Firewall on your DNS domain network" policy setting overrides.

Registry

HKLM SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile

Value name: EnableFirewall

Enabled: EnableFirewall = 1

Disabled: EnableFirewall = 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: Protect all network connections
; State: Enabled
; Supported on: At least Windows XP Professional with SP2

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

PowerShell

# Exported from gporais.com
# Policy: Windows Defender Firewall: Protect all network connections
# State: Enabled
# Supported on: At least Windows XP Professional with SP2

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

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