Block Folders for Copilot Device Access

ComputerNeeds changes for IntuneL_CopilotDeviceBlockedFilePaths

Supported on SUPPORTED_Windows_10_0 (defined in the Windows templates)

5568.1000

What it does

This policy setting allows administrators to define which folders (local or network) Copilot cannot access. If you enable this policy setting, Copilot is blocked from accessing the folders listed in this policy. If you disable or don't configure this policy setting, only built-in protections for system/network locations apply. For more information, see https://aka.ms/copilot-device-tools Note: This policy setting only applies to subscription versions of Microsoft 365 Copilot on Windows and macOS desktop apps.

What it writes

Hive: HKEY_LOCAL_MACHINE
Registry key: software\policies\microsoft\office\16.0\common\copilot\blockedfilepaths

Why it needs changes for Intune

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

Options

Option	Type	Registry value	Allowed values
Blocked folders	List of values		Any

Configure and deploy

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

Enabled · Computer · template defaults

Registry file (.reg)

Windows Registry Editor Version 5.00

[-HKEY_LOCAL_MACHINE\software\policies\microsoft\office\16.0\common\copilot\blockedfilepaths]

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: Block Folders for Copilot Device Access
# Name: L_CopilotDeviceBlockedFilePaths
# Scope: Machine
# State: Enabled
# Source: office16.admx

Clear-RegistryKeyValues -Path 'Registry::HKEY_LOCAL_MACHINE\software\policies\microsoft\office\16.0\common\copilot\blockedfilepaths'

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.
The generated payload is incomplete because one or more ADMX element values were not supplied: L_CopilotDeviceBlockedFilePathsList

ADMX profile candidate (OMA-URI)

./Device/Vendor/MSFT/Policy/Config/ADMX_office16/L_CopilotDeviceBlockedFilePaths

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: Block Folders for Copilot Device Access
# Name: L_CopilotDeviceBlockedFilePaths
# Scope: Machine
# State: Enabled
# Source: office16.admx

$keyPath = 'Registry::HKEY_LOCAL_MACHINE\software\policies\microsoft\office\16.0\common\copilot\blockedfilepaths'
if (Test-Path -LiteralPath $keyPath) {
    $propertyNames = (Get-Item -LiteralPath $keyPath).Property
    if ($propertyNames.Count -gt 0) {
        $reasons.Add('Key should be empty: HKEY_LOCAL_MACHINE\software\policies\microsoft\office\16.0\common\copilot\blockedfilepaths') | 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: Block Folders for Copilot Device Access
# Name: L_CopilotDeviceBlockedFilePaths
# Scope: Machine
# State: Enabled
# Source: office16.admx

Clear-RegistryKeyValues -Path 'Registry::HKEY_LOCAL_MACHINE\software\policies\microsoft\office\16.0\common\copilot\blockedfilepaths'

History 1 retained release

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

Template

Internal name: L_CopilotDeviceBlockedFilePaths
Namespace: office16.Office.Microsoft.Policies.Windows
Template file: office16.admx
Release: Microsoft 365 Apps 5568.1000 · file set 8be05d876aae137d…

Definition, editor controls and support

Definition

<policy class="Machine" displayName="$(string.L_CopilotDeviceBlockedFilePaths)" explainText="$(string.L_CopilotDeviceBlockedFilePathsExplain)" key="software\policies\microsoft\office\16.0\common\copilot\blockedfilepaths" name="L_CopilotDeviceBlockedFilePaths" presentation="$(presentation.L_CopilotDeviceBlockedFilePaths)" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="office16.Office.Microsoft.Policies.Windows:L_Copilot" />
      <supportedOn ref="Microsoft.Policies.Windows:SUPPORTED_Windows_10_0" />
      <elements>
        <list id="L_CopilotDeviceBlockedFilePathsList" />
      </elements>
    </policy>

Editor controls

<presentation id="L_CopilotDeviceBlockedFilePaths" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <listBox refId="L_CopilotDeviceBlockedFilePathsList">Blocked folders:</listBox>
      </presentation>

Supported platforms and category

office16.Office.Microsoft.Policies.Windows:category:L_Copilot
<category displayName="$(string.L_Copilot)" name="L_Copilot" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="office16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficemachine" />
    </category>
office16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficemachine
<category displayName="$(string.L_MicrosoftOfficemachine)" name="L_MicrosoftOfficemachine" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
office16.Office.Microsoft.Policies.Windows:unresolved:Microsoft.Policies.Windows:SUPPORTED_Windows_10_0
<unresolved reference="Microsoft.Policies.Windows:SUPPORTED_Windows_10_0" />
office16.Office.Microsoft.Policies.Windows:category:L_Copilot
<category displayName="$(string.L_Copilot)" name="L_Copilot" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="office16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficemachine" />
    </category>
<strings><string id="office16.Office.Microsoft.Policies.Windows:L_Copilot">Microsoft 365 Copilot</string></strings>
office16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficemachine
<category displayName="$(string.L_MicrosoftOfficemachine)" name="L_MicrosoftOfficemachine" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="office16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficemachine">Microsoft Office 2016 (Machine)</string></strings>