Show an "Always open" checkbox in external protocol dialog
Verified with Microsoft Edge 152.0.4191.53 — updated on July 10, 2026
Supported on: Microsoft Edge version 79, Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Microsoft Edge User Configuration\Administrative Templates\Microsoft Edge Description
This policy controls whether the "Always allow this site to open links of this type" checkbox is shown on external protocol launch confirmation prompts. This policy only applies to https:// links. If you enable this policy, when an external protocol confirmation prompt is shown, the user can select "Always allow" to skip all future confirmation prompts for the protocol on this site. If you disable this policy, the "Always allow" checkbox isn't displayed. The user is prompted for confirmation every time an external protocol is invoked. Prior to Microsoft Edge 83, if you don't configure this policy, the "Always allow" checkbox isn't displayed. The user is prompted for confirmation every time an external protocol is invoked. On Microsoft Edge 83, if you don't configure this policy, the checkbox visibility is controlled by the "Enable remembering protocol launch prompting preferences" flag in edge://flags As of Microsoft Edge 84, if you don't configure this policy, when an external protocol confirmation prompt is shown, the user can select "Always allow" to skip all future confirmation prompts for the protocol on this site.
Registry
Software\Policies\Microsoft\Edge Software\Policies\Microsoft\Edge Value name: ExternalProtocolDialogShowAlwaysOpenCheckbox
Enabled: ExternalProtocolDialogShowAlwaysOpenCheckbox = 1
Disabled: ExternalProtocolDialogShowAlwaysOpenCheckbox = 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. ⓘ
Applying both scopes creates an ambiguous configuration (computer takes precedence over user). Only do this intentionally.
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Show an "Always open" checkbox in external protocol dialog
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 79, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge]
"ExternalProtocolDialogShowAlwaysOpenCheckbox"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Show an "Always open" checkbox in external protocol dialog
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 79, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ExternalProtocolDialogShowAlwaysOpenCheckbox' -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: Show an "Always open" checkbox in external protocol dialog
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 79, Windows 7 or later
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge' -Name 'ExternalProtocolDialogShowAlwaysOpenCheckbox' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Show an "Always open" checkbox in external protocol dialog
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 79, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ExternalProtocolDialogShowAlwaysOpenCheckbox' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Show an "Always open" checkbox in external protocol dialog
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 79, Windows 7 or later
# 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: Show an "Always open" checkbox in external protocol dialog
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 79, Windows 7 or later
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge' -Name 'ExternalProtocolDialogShowAlwaysOpenCheckbox' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Show an "Always open" checkbox in external protocol dialog
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 79, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ExternalProtocolDialogShowAlwaysOpenCheckbox' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.