Windows Defender Firewall: Do not allow exceptions
Verified with Windows 11 25H2 — updated on July 10, 2026
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
Specifies that Windows Defender Firewall blocks all unsolicited incoming messages. This policy setting overrides all other Windows Defender Firewall policy settings that allow such messages. If you enable this policy setting, in the Windows Defender Firewall component of Control Panel, the "Block all incoming connections" check box is selected and administrators cannot clear it. You should also enable the "Windows Defender Firewall: Protect all network connections" policy setting; otherwise, administrators who log on locally can work around the "Windows Defender Firewall: Do not allow exceptions" policy setting by turning off the firewall. If you disable this policy setting, Windows Defender Firewall applies other policy settings that allow unsolicited incoming messages. In the Windows Defender Firewall component of Control Panel, the "Block all incoming connections" check box is cleared and administrators cannot select it. If you do not configure this policy setting, Windows Defender Firewall applies other policy settings that allow unsolicited incoming messages. In the Windows Defender Firewall component of Control Panel, the "Block all incoming connections" check box is cleared by default, but administrators can change it.
Registry
SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile Value name: DoNotAllowExceptions
Enabled: DoNotAllowExceptions = 1
Disabled: DoNotAllowExceptions = 0
Export Builder
BETAConfigure 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: Do not allow exceptions
; State: Enabled
; Supported on: At least Windows XP Professional with SP2
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile]
"DoNotAllowExceptions"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Windows Defender Firewall: Do not allow exceptions
# 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 'DoNotAllowExceptions' -Value 1 -Type DWordIntune XML
No direct Policy CSP / OMA-URI mapping for this policy. Use the Intune Remediation tab, or ingest the ADMX in Intune.Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Windows Defender Firewall: Do not allow exceptions
# State: Enabled
# Supported on: At least Windows XP Professional with SP2
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile' -Name 'DoNotAllowExceptions' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Windows Defender Firewall: Do not allow exceptions
# 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 'DoNotAllowExceptions' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Windows Defender Firewall: Do not allow exceptions
# State: Enabled
# Supported on: At least Windows XP Professional with SP2
# 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: Windows Defender Firewall: Do not allow exceptions
# State: Enabled
# Supported on: At least Windows XP Professional with SP2
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile' -Name 'DoNotAllowExceptions' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Windows Defender Firewall: Do not allow exceptions
# 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 'DoNotAllowExceptions' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.