Allow data persistence for Microsoft Defender Application Guard
Verified with Windows 11 25H2 — updated on July 16, 2026
Supported on: Microsoft Edge on Windows 10 Enterprise or Windows 10 Education with Microsoft Defender Application Guard in Enterprise mode
Path in the GPO console
Computer Configuration\Administrative Templates\Windows Components\Microsoft Defender Application Guard Description
This policy setting allows you to decide whether data should persist across different sessions in Microsoft Defender Application Guard. If you enable this setting, Application Guard saves user-downloaded files and other items (such as, cookies, Favorites, and so on) for use in future Application Guard sessions. Note: If you enable this setting, you can still delete a user's data from a specific device using the Reset-ApplicationGuard PowerShell command. Running this command deletes all employee data, regardless of configuration, and can result in data loss for the employee. If you disable or don't configure this setting, Application Guard deletes all user data within the Application Guard container.
Registry
HKLM
SOFTWARE\Policies\Microsoft\AppHVSI Value name: AllowPersistence
Enabled: AllowPersistence = 1
Disabled: AllowPersistence = 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. ⓘ
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Allow data persistence for Microsoft Defender Application Guard
; State: Enabled
; Supported on: Microsoft Edge on Windows 10 Enterprise or Windows 10 Education with Microsoft Defender Application Guard in Enterprise mode
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\AppHVSI]
"AllowPersistence"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Allow data persistence for Microsoft Defender Application Guard
# State: Enabled
# Supported on: Microsoft Edge on Windows 10 Enterprise or Windows 10 Education with Microsoft Defender Application Guard in Enterprise mode
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\AppHVSI'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowPersistence' -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 data persistence for Microsoft Defender Application Guard
# State: Enabled
# Supported on: Microsoft Edge on Windows 10 Enterprise or Windows 10 Education with Microsoft Defender Application Guard in Enterprise mode
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\AppHVSI' -Name 'AllowPersistence' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow data persistence for Microsoft Defender Application Guard
# State: Enabled
# Supported on: Microsoft Edge on Windows 10 Enterprise or Windows 10 Education with Microsoft Defender Application Guard in Enterprise mode
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\AppHVSI'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowPersistence' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Allow data persistence for Microsoft Defender Application Guard
# State: Enabled
# Supported on: Microsoft Edge on Windows 10 Enterprise or Windows 10 Education with Microsoft Defender Application Guard in Enterprise mode
# 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 data persistence for Microsoft Defender Application Guard
# State: Enabled
# Supported on: Microsoft Edge on Windows 10 Enterprise or Windows 10 Education with Microsoft Defender Application Guard in Enterprise mode
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\SOFTWARE\Policies\Microsoft\AppHVSI' -Name 'AllowPersistence' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow data persistence for Microsoft Defender Application Guard
# State: Enabled
# Supported on: Microsoft Edge on Windows 10 Enterprise or Windows 10 Education with Microsoft Defender Application Guard in Enterprise mode
$path = 'HKLM:\SOFTWARE\Policies\Microsoft\AppHVSI'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowPersistence' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.