Enable Process Isolation
Verified with Microsoft Edge 152.0.4191.53 — updated on September 2, 2026
Supported on: Microsoft Edge version 151, 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 Process Isolation in Microsoft Edge. When this policy is enabled, Microsoft Edge uses Process Isolation to help improve browser security by preventing authorized applications on the device from reading or modifying the contents of Microsoft Edge's running processes. This also helps prevent other applications from accessing encrypted data used by Microsoft Edge. Enabling Process Isolation may cause incompatibilities with third party applications that rely on being able to inject or tamper with Microsoft Edge's processes, such as antivirus, screen reader or window manager applications. Setting the policy to Enabled turns on process isolation in Microsoft Edge. Setting the policy to Disabled turns off process isolation in Microsoft Edge. If this policy is unset, Microsoft Edge will follow the default rollout process for the Process Isolation feature, which means that the feature will be gradually rolled out to an increasing number of users. Note: This policy is applied when Microsoft Edge starts. If the policy is changed while Microsoft Edge is running, the new setting will take effect on the next restart.
Registry
Software\Policies\Microsoft\Edge Software\Policies\Microsoft\Edge Value name: ProcessIsolationEnabled
Enabled: ProcessIsolationEnabled = 1
Disabled: ProcessIsolationEnabled = 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: Enable Process Isolation
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Edge version 151, Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge]
"ProcessIsolationEnabled"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Enable Process Isolation
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 151, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ProcessIsolationEnabled' -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: Enable Process Isolation
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 151, 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge' -Name 'ProcessIsolationEnabled' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Enable Process Isolation
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 151, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ProcessIsolationEnabled' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Enable Process Isolation
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 151, 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: Enable Process Isolation
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 151, 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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Edge' -Name 'ProcessIsolationEnabled' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Enable Process Isolation
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Edge version 151, Windows 7 or later
$path = 'HKLM:\Software\Policies\Microsoft\Edge'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ProcessIsolationEnabled' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.