Allow software WebGL fallback using SwiftShader
Verified with Microsoft Edge 152.0.4191.53 — updated on July 10, 2026
Supported on: Microsoft Edge version 139, Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Microsoft Edge User Configuration\Administrative Templates\Microsoft Edge Description
Controls whether SwiftShader is used as a fallback for WebGL when hardware GPU acceleration isn't available. When enabled, Microsoft Edge uses SwiftShader to support WebGL on systems without GPU acceleration, such as headless environments or virtual machines. Starting in Microsoft Edge version 144, SwiftShader is deprecated due to security concerns. As a result, WebGL context creation fails in scenarios where SwiftShader is used. Enabling this policy allows organizations to temporarily defer the deprecation and continue using SwiftShader. If you disable or don't configure this policy, WebGL context creation can fail on systems without hardware acceleration. This could cause web content relying on WebGL to function incorrectly if it doesn't handle context creation failures. Note: This policy is temporary and scheduled for removal in a future release. Microsoft doesn't guarantee the security of environments where this policy is enabled.
Registry
Software\Policies\Microsoft\Edge Software\Policies\Microsoft\Edge Value name: EnableUnsafeSwiftShader
Enabled: EnableUnsafeSwiftShader = 1
Disabled: EnableUnsafeSwiftShader = 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: Allow software WebGL fallback using SwiftShader
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 139, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge]
"EnableUnsafeSwiftShader"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Allow software WebGL fallback using SwiftShader
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnableUnsafeSwiftShader' -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: Allow software WebGL fallback using SwiftShader
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge' -Name 'EnableUnsafeSwiftShader' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow software WebGL fallback using SwiftShader
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnableUnsafeSwiftShader' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Allow software WebGL fallback using SwiftShader
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, 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: Allow software WebGL fallback using SwiftShader
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge' -Name 'EnableUnsafeSwiftShader' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow software WebGL fallback using SwiftShader
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 139, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'EnableUnsafeSwiftShader' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.