Turn off protection of unsupported file types in Application Guard for Office
Verified with Microsoft 365/Office 5568.1000 — updated on September 4, 2026
Supported on: At least Windows Server 2016, Windows 10
Path in the GPO console
User Configuration\Administrative Templates\Microsoft Office 2016\Security Settings\Trust Center\Application Guard Description
This policy setting controls whether Application Guard for Office will block unsupported file types from being opened in Office apps or if it will enable the redirection to Protected View. If you enable this setting, Application Guard for Office will redirect unsupported file types to Protected View in Office apps. Important: Be aware that enabling this policy setting might pose a risk to the user's device. If you disable or don't configure this setting, Application Guard for Office will block unsupported file types in Office apps. Note: This policy setting only applies to Microsoft 365 Apps for enterprise.
Registry
HKCU
software\policies\microsoft\office\16.0\common\security\applicationguard Value name: redirectunsupportedfiletypestopv
Enabled: redirectunsupportedfiletypestopv = 1
Disabled: redirectunsupportedfiletypestopv = 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: Turn off protection of unsupported file types in Application Guard for Office
; State: Enabled
; Supported on: At least Windows Server 2016, Windows 10
[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\common\security\applicationguard]
"redirectunsupportedfiletypestopv"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Turn off protection of unsupported file types in Application Guard for Office
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\software\policies\microsoft\office\16.0\common\security\applicationguard'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'redirectunsupportedfiletypestopv' -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: Turn off protection of unsupported file types in Application Guard for Office
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\software\policies\microsoft\office\16.0\common\security\applicationguard' -Name 'redirectunsupportedfiletypestopv' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Turn off protection of unsupported file types in Application Guard for Office
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\software\policies\microsoft\office\16.0\common\security\applicationguard'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'redirectunsupportedfiletypestopv' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Turn off protection of unsupported file types in Application Guard for Office
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10
# 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: Turn off protection of unsupported file types in Application Guard for Office
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
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
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\software\policies\microsoft\office\16.0\common\security\applicationguard' -Name 'redirectunsupportedfiletypestopv' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Turn off protection of unsupported file types in Application Guard for Office
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
$path = 'HKCU:\software\policies\microsoft\office\16.0\common\security\applicationguard'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'redirectunsupportedfiletypestopv' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.