Configure per-application WebView2 downgrade version
Verified with Microsoft Edge 152.0.4191.53 — updated on September 2, 2026
Supported on: Microsoft Edge version 149, Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Microsoft Edge WebView2\Loader Override Settings User Configuration\Administrative Templates\Microsoft Edge WebView2\Loader Override Settings Description
This policy lets you specify the exact 4-part version of the WebView2 Runtime that specific applications should use in enterprise downgrade scenarios. Configure the policy by setting the value name to the Application User Model ID or the executable file name (for example, teams.exe). Set the value to the target full version string using the 4-part numeric format (for example, 151.0.2178.0). Major-only values (for example, 151), wildcard values (for example, 151.*), and values that are not exact 4-part numeric versions are not supported. The WebView2 loader resolves the runtime installation directory only when a folder that exactly matches the configured full version exists (for example, 151.0.2178.0 must match 151.0.2178.0 exactly). If no exact matching folder is found, the policy has no effect and the runtime defaults to the BrowserExecutableFolder policy or the Evergreen runtime (the default auto-updating runtime). Example value: Name: teams.exe, Value: 151.0.2178.0 Name: outlook.exe, Value: 152.0.2164.0
Registry
Software\Policies\Microsoft\Edge\WebView2 Software\Policies\Microsoft\Edge\WebView2 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: Configure per-application WebView2 downgrade version
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 149, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\WebView2\DowngradeVersion]
; List values: enter one value per line in the builder UI.More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Configure per-application WebView2 downgrade version
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 149, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\WebView2\DowngradeVersion'
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: Configure per-application WebView2 downgrade version
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 149, 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\WebView2\DowngradeVersion: 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: Configure per-application WebView2 downgrade version
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 149, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\WebView2\DowngradeVersion'
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: Configure per-application WebView2 downgrade version
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 149, 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: Configure per-application WebView2 downgrade version
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 149, 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\WebView2\DowngradeVersion: 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: Configure per-application WebView2 downgrade version
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 149, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge\WebView2\DowngradeVersion'
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.