Block Window Management permission on specified sites
Verified with Microsoft Edge 152.0.4191.53 — updated on July 10, 2026
Supported on: Microsoft Edge version 123, Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Microsoft Edge\Content settings User Configuration\Administrative Templates\Microsoft Edge\Content settings Description
Lets you configure a list of site URL patterns that specify sites which can automatically deny the window management permission. This limits the ability of sites to see information about the device's screens. This information can be used to open and place windows or request fullscreen on specific screens. For detailed information on valid site URL patterns, see https://go.microsoft.com/fwlink/?linkid=2095322. Wildcards, *, are allowed. This policy only matches based on site origin, so any path in the URL pattern is ignored. If this policy isn't configured for a site, then the policy from 'DefaultWindowManagementSetting' (Default Window Management permission setting) applies to the site, if configured. Otherwise the permission follows the browser's defaults and lets users choose this permission per site. Example value: https://www.example.com [*.]example.edu
Registry
Software\Policies\Microsoft\Edge Software\Policies\Microsoft\Edge 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: Block Window Management permission on specified sites
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 123, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\WindowManagementBlockedForUrls]
; List values: enter one value per line in the builder UI.More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Block Window Management permission on specified sites
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 123, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\WindowManagementBlockedForUrls'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.Intune 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: Block Window Management permission on specified sites
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 123, 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
}
# HKLM:\Software\Policies\Microsoft\Edge\WindowManagementBlockedForUrls: List values: enter one value per line in the builder UI.
# No testable registry values are available for this state.
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Block Window Management permission on specified sites
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 123, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\WindowManagementBlockedForUrls'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.SCCM scripts
# Exported from gporais.com
# Policy: Block Window Management permission on specified sites
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 123, 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: Block Window Management permission on specified sites
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 123, 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
}
# HKLM:\Software\Policies\Microsoft\Edge\WindowManagementBlockedForUrls: List values: enter one value per line in the builder UI.
# No testable registry values are available for this state.
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Block Window Management permission on specified sites
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 123, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\WindowManagementBlockedForUrls'
New-Item -Path $path -Force | Out-Null
# List values: enter one value per line in the builder UI.Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.