Microsoft 365 Apps Group Policy settings

2,420 settings · 5568.1000 · 10 Aug 2026

5 settingsCSV

Microsoft Word 2016 › Word Options › Security › Trust Center › File Block Settings

Set default file block behavior

UserNeeds changes for IntuneL_SetDefaultFileBlockBehavior

Supported on SUPPORTED_Windows7 (defined in the Windows templates)

5568.1000

What it does

This policy setting allows you to determine if users can open, view, or edit Word files. If you enable this policy setting, you can set one of these options: - Blocked files are not opened - Blocked files open in Protected View and can not be edited - Blocked files open in Protected View and can be edited If you disable or do not configure this policy setting, users will be able to open blocked files, but not edit them.

What it writes

Hive: HKEY_CURRENT_USER
Registry key: software\policies\microsoft\office\16.0\word\security\fileblock

Why it needs changes for Intune

Policy references a Windows supportedOn definition.
ADMX-INTUNE-WINDOWS-SUPPORTEDON-REFERENCE

Security baselines

Microsoft's Microsoft 365 Apps for Enterprise 2512 sets this to Enabled, in its GPO “MSFT Microsoft 365 Apps v2512 - Legacy File Block - User”.

openinprotectedview: Set to “Blocked files are not opened” (0).

Read from the registry.pol files in the baselines' GPO backups, downloaded from Microsoft's Security Compliance Toolkit. All baselines

Options

Option	Type	Registry value	Allowed values
L_SetDefaultFileBlockBehaviorDropIDDefault: Blocked files are not opened	Drop-down list	`openinprotectedview`	Blocked files are not opened`0` Blocked files open in Protected View and can not be edited`1` Blocked files open in Protected View and can be edited`2`

Configure and deploy

Choose a state and the option values; the output below is generated from the template for exactly that.

Enabled · User · template defaults

Registry file (.reg)

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\word\security\fileblock]
"openinprotectedview"=dword:00000000

PowerShell

$ErrorActionPreference = 'Stop'

function Set-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $PropertyType,
        [Parameter(Mandatory = $true)][object] $Value
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        New-Item -Path $Path -Force | Out-Null
    }

    New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}

function Remove-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (Test-Path -LiteralPath $Path) {
        Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
    }
}

function Clear-RegistryKeyValues {
    param(
        [Parameter(Mandatory = $true)][string] $Path
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return
    }

    foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
        Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
    }
}

# Policy: Set default file block behavior
# Name: L_SetDefaultFileBlockBehavior
# Scope: User
# State: Enabled
# Source: word16.admx

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\word\security\fileblock' -Name 'openinprotectedview' -PropertyType 'DWord' -Value 0

The OMA-URI is an inferred ADMX-backed Policy CSP candidate derived from the source ADMX file name and policy name.
Some Microsoft policies use built-in Policy CSP pages whose area names don't match the ADMX file name, so verify the candidate against Microsoft Learn before deployment.

ADMX profile candidate (OMA-URI)

./User/Vendor/MSFT/Policy/Config/ADMX_word16/L_SetDefaultFileBlockBehavior

ADMX SyncML candidate

<SyncML xmlns="SYNCML:SYNCML1.2">
  <SyncBody>
    <Replace>
      <CmdID>1</CmdID>
      <Item>
        <Meta>
          <Format>chr</Format>
          <Type>text/plain</Type>
        </Meta>
        <Target>
          <LocURI>./User/Vendor/MSFT/Policy/Config/ADMX_word16/L_SetDefaultFileBlockBehavior</LocURI>
        </Target>
        <Data>&lt;enabled/&gt;
&lt;data id="L_SetDefaultFileBlockBehaviorDropID" value="0"/&gt;</Data>
      </Item>
    </Replace>
    <Final/>
  </SyncBody>
</SyncML>

Intune remediation scripts

Detection

$ErrorActionPreference = 'Stop'
$reasons = [System.Collections.Generic.List[string]]::new()

function Test-RegistryValueExists {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return $false
    }

    return $null -ne (Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue)
}

function Test-RegistryValueEquals {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $Kind,
        [Parameter(Mandatory = $true)][object] $Expected
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return $false
    }

    $valueObject = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue
    if ($null -eq $valueObject) {
        return $false
    }

    $actual = $valueObject.$Name
    switch ($Kind) {
        'String' { return [string]$actual -ceq [string]$Expected }
        'ExpandString' { return [string]$actual -ceq [string]$Expected }
        'DWord' { return [uint32]$actual -eq [uint32]$Expected }
        'QWord' { return [uint64]$actual -eq [uint64]$Expected }
        'MultiString' {
            $actualArray = @($actual)
            $expectedArray = @($Expected)
            if ($actualArray.Count -ne $expectedArray.Count) { return $false }
            for ($index = 0; $index -lt $actualArray.Count; $index++) {
                if ([string]$actualArray[$index] -cne [string]$expectedArray[$index]) { return $false }
            }
            return $true
        }
        'Binary' {
            $actualArray = [byte[]]$actual
            $expectedArray = [byte[]]$Expected
            if ($actualArray.Length -ne $expectedArray.Length) { return $false }
            for ($index = 0; $index -lt $actualArray.Length; $index++) {
                if ($actualArray[$index] -ne $expectedArray[$index]) { return $false }
            }
            return $true
        }
        default { return [string]$actual -ceq [string]$Expected }
    }
}

# Policy: Set default file block behavior
# Name: L_SetDefaultFileBlockBehavior
# Scope: User
# State: Enabled
# Source: word16.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\word\security\fileblock' -Name 'openinprotectedview' -Kind 'DWord' -Expected 0
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\word\security\fileblock\openinprotectedview') | Out-Null
}

if ($reasons.Count -eq 0) {
    Write-Output 'Compliant'
    exit 0
}

$reasons | ForEach-Object { Write-Output $_ }
exit 1

Remediation

$ErrorActionPreference = 'Stop'

function Set-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $PropertyType,
        [Parameter(Mandatory = $true)][object] $Value
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        New-Item -Path $Path -Force | Out-Null
    }

    New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}

function Remove-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (Test-Path -LiteralPath $Path) {
        Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
    }
}

function Clear-RegistryKeyValues {
    param(
        [Parameter(Mandatory = $true)][string] $Path
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return
    }

    foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
        Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
    }
}

# Policy: Set default file block behavior
# Name: L_SetDefaultFileBlockBehavior
# Scope: User
# State: Enabled
# Source: word16.admx

Set-RegistryValue -Path 'Registry::HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\word\security\fileblock' -Name 'openinprotectedview' -PropertyType 'DWord' -Value 0

History 1 retained release

5568.100010 Aug 2026
- Already present in the first release ChangeIntel keeps.

Template

Internal name: L_SetDefaultFileBlockBehavior
Namespace: word16.Office.Microsoft.Policies.Windows
Template file: word16.admx
Release: Microsoft 365 Apps 5568.1000 · file set 8be05d876aae137d…

Definition, editor controls and support

Definition

<policy Area="Security Baseline" AreaCategory="Fileblock" class="User" displayName="$(string.L_SetDefaultFileBlockBehavior)" explainText="$(string.L_SetDefaultFileBlockBehaviorExplain)" key="software\policies\microsoft\office\16.0\word\security\fileblock" name="L_SetDefaultFileBlockBehavior" presentation="$(presentation.L_SetDefaultFileBlockBehavior)" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="word16.Office.Microsoft.Policies.Windows:L_FileBlockSettings" />
      <supportedOn ref="Microsoft.Policies.Windows:SUPPORTED_Windows7" />
      <elements>
        <enum id="L_SetDefaultFileBlockBehaviorDropID" valueName="openinprotectedview">
          <item displayName="$(string.L_SetDefaultFileBlockBehaviorStr1)">
            <value>
              <decimal value="0" />
            </value>
          </item>
          <item displayName="$(string.L_SetDefaultFileBlockBehaviorStr2)">
            <value>
              <decimal value="1" />
            </value>
          </item>
          <item displayName="$(string.L_SetDefaultFileBlockBehaviorStr3)">
            <value>
              <decimal value="2" />
            </value>
          </item>
        </enum>
      </elements>
    </policy>

Editor controls

<presentation id="L_SetDefaultFileBlockBehavior" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <dropdownList defaultItem="0" noSort="true" refId="L_SetDefaultFileBlockBehaviorDropID">
        </dropdownList>
      </presentation>

Supported platforms and category

word16.Office.Microsoft.Policies.Windows:category:L_FileBlockSettings
<category displayName="$(string.L_FileBlockSettings)" name="L_FileBlockSettings" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="word16.Office.Microsoft.Policies.Windows:L_TrustCenter" />
    </category>
word16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficeWord
<category displayName="$(string.L_MicrosoftOfficeWord)" name="L_MicrosoftOfficeWord" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
word16.Office.Microsoft.Policies.Windows:category:L_Security
<category displayName="$(string.L_Security)" name="L_Security" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="word16.Office.Microsoft.Policies.Windows:L_WordOptions" />
    </category>
word16.Office.Microsoft.Policies.Windows:category:L_TrustCenter
<category displayName="$(string.L_TrustCenter)" name="L_TrustCenter" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="word16.Office.Microsoft.Policies.Windows:L_Security" />
    </category>
word16.Office.Microsoft.Policies.Windows:category:L_WordOptions
<category displayName="$(string.L_WordOptions)" name="L_WordOptions" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="word16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeWord" />
    </category>
word16.Office.Microsoft.Policies.Windows:unresolved:Microsoft.Policies.Windows:SUPPORTED_Windows7
<unresolved reference="Microsoft.Policies.Windows:SUPPORTED_Windows7" />
word16.Office.Microsoft.Policies.Windows:category:L_FileBlockSettings
<category displayName="$(string.L_FileBlockSettings)" name="L_FileBlockSettings" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="word16.Office.Microsoft.Policies.Windows:L_TrustCenter" />
    </category>
<strings><string id="word16.Office.Microsoft.Policies.Windows:L_FileBlockSettings">File Block Settings</string></strings>
word16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficeWord
<category displayName="$(string.L_MicrosoftOfficeWord)" name="L_MicrosoftOfficeWord" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="word16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeWord">Microsoft Word 2016</string></strings>
word16.Office.Microsoft.Policies.Windows:category:L_Security
<category displayName="$(string.L_Security)" name="L_Security" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="word16.Office.Microsoft.Policies.Windows:L_WordOptions" />
    </category>
<strings><string id="word16.Office.Microsoft.Policies.Windows:L_Security">Security</string></strings>
word16.Office.Microsoft.Policies.Windows:category:L_TrustCenter
<category displayName="$(string.L_TrustCenter)" name="L_TrustCenter" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="word16.Office.Microsoft.Policies.Windows:L_Security" />
    </category>
<strings><string id="word16.Office.Microsoft.Policies.Windows:L_TrustCenter">Trust Center</string></strings>
word16.Office.Microsoft.Policies.Windows:category:L_WordOptions
<category displayName="$(string.L_WordOptions)" name="L_WordOptions" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="word16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeWord" />
    </category>
<strings><string id="word16.Office.Microsoft.Policies.Windows:L_WordOptions">Word Options</string></strings>