3,621 settings · 25H2 · 1.0 · 29 Sep 2025

1 settingCSV

Prohibit installing or uninstalling color profiles Computer

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Windows Components › Windows Update › Manage updates offered from Windows Server Update Service

Allow signed updates from an intranet Microsoft update service location

ComputerIntune-readyTrustedPublisher_Title

Supported on At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT

25H2 · 1.0

What it does

This policy setting allows you to manage whether Automatic Updates accepts updates signed by entities other than Microsoft when the update is found on an intranet Microsoft update service location. If you enable this policy setting, Automatic Updates accepts updates received through an intranet Microsoft update service location, if they are signed by a certificate found in the "Trusted Publishers" certificate store of the local computer. If you disable or do not configure this policy setting, updates from an intranet Microsoft update service location must be signed by Microsoft. Note: Updates from a service other than an intranet Microsoft update service must always be signed by Microsoft and are not affected by this policy setting. Note: This policy is not supported on Windows RT. Setting this policy will not have any effect on Windows RT PCs.

What it writes

Hive: HKEY_LOCAL_MACHINE
Registry key: Software\Policies\Microsoft\Windows\WindowsUpdate
Value name: AcceptTrustedPublisherCerts
When enabled: DWORD 1
When disabled: DWORD 0

In Intune

No native CSP; import the ADMX (Intune-ready).

From Microsoft's Policy CSP DDF files (DDF v2 Files, February 2026), read 18 Oct 2026.

Configure and deploy

Choose a state; 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\Windows\WindowsUpdate]
"AcceptTrustedPublisherCerts"=dword:00000001

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: Allow signed updates from an intranet Microsoft update service location 
# Name: TrustedPublisher_Title
# Scope: Machine
# State: Enabled
# Source: WindowsUpdate.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'AcceptTrustedPublisherCerts' -PropertyType 'DWord' -Value 1

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)

./Device/Vendor/MSFT/Policy/Config/ADMX_WindowsUpdate/TrustedPublisher_Title

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>./Device/Vendor/MSFT/Policy/Config/ADMX_WindowsUpdate/TrustedPublisher_Title</LocURI>
        </Target>
        <Data>&lt;enabled/&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: Allow signed updates from an intranet Microsoft update service location 
# Name: TrustedPublisher_Title
# Scope: Machine
# State: Enabled
# Source: WindowsUpdate.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'AcceptTrustedPublisherCerts' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate\AcceptTrustedPublisherCerts') | 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: Allow signed updates from an intranet Microsoft update service location 
# Name: TrustedPublisher_Title
# Scope: Machine
# State: Enabled
# Source: WindowsUpdate.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'AcceptTrustedPublisherCerts' -PropertyType 'DWord' -Value 1

History 5 retained releases

22H2 · 1.015 Jul 2024
- Already present in the first release ChangeIntel keeps.

4 later releases left it unchanged.

Template

Internal name: TrustedPublisher_Title
Namespace: Microsoft.Policies.WindowsUpdate
Template file: WindowsUpdate.admx
Release: Windows 11 25H2 · 1.0 · file set de4e49983ebd651f…

Definition, editor controls and support

Definition

<policy class="Machine" displayName="$(string.TrustedPublisher_Title)" explainText="$(string.TrustedPublisher_Help)" key="Software\Policies\Microsoft\Windows\WindowsUpdate" name="TrustedPublisher_Title" valueName="AcceptTrustedPublisherCerts" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.WindowsUpdate:WSUSOffering" />
      <supportedOn ref="Microsoft.Policies.WindowsUpdate:WU_SUPPORTED_WindowsXPSP1_NoWinRT" />
      <enabledValue>
        <decimal value="1" />
      </enabledValue>
      <disabledValue>
        <decimal value="0" />
      </disabledValue>
    </policy>

Editor controls

Supported platforms and category

Microsoft.Policies.Windows:category:WindowsComponents
<category displayName="$(string.WindowsComponents)" explainText="$(string.WindowsComponents_Help)" name="WindowsComponents" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Microsoft.Policies.WindowsUpdate:category:WSUSOffering
<category displayName="$(string.WSUSOffering)" name="WSUSOffering" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.WindowsUpdate:WindowsUpdateCat" />
    </category>
Microsoft.Policies.WindowsUpdate:category:WindowsUpdateCat
<category displayName="$(string.WindowsUpdateCat)" name="WindowsUpdateCat" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Windows:WindowsComponents" />
    </category>
Microsoft.Policies.WindowsUpdate:definition:WU_SUPPORTED_WindowsXPSP1_NoWinRT
<definition displayName="$(string.WU_SUPPORTED_WindowsXPSP1_NoWinRT)" name="WU_SUPPORTED_WindowsXPSP1_NoWinRT" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <range minVersionIndex="1" ref="unresolved(products):MicrosoftWindowsXP" />
          <range maxVersionIndex="8" minVersionIndex="3" ref="unresolved(products):MicrosoftWindows" />
        </or>
      </definition>
Microsoft.Policies.WindowsUpdate:unresolved:unresolved(products):MicrosoftWindows
<unresolved reference="unresolved(products):MicrosoftWindows" />
Microsoft.Policies.WindowsUpdate:unresolved:unresolved(products):MicrosoftWindowsXP
<unresolved reference="unresolved(products):MicrosoftWindowsXP" />
Microsoft.Policies.Windows:category:WindowsComponents
<category displayName="$(string.WindowsComponents)" explainText="$(string.WindowsComponents_Help)" name="WindowsComponents" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Microsoft.Policies.Windows:WindowsComponents">Windows Components</string><string id="Microsoft.Policies.Windows:WindowsComponents_Help">Contains settings for operating system components.</string></strings>
Microsoft.Policies.WindowsUpdate:category:WSUSOffering
<category displayName="$(string.WSUSOffering)" name="WSUSOffering" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.WindowsUpdate:WindowsUpdateCat" />
    </category>
<strings><string id="Microsoft.Policies.WindowsUpdate:WSUSOffering">Manage updates offered from Windows Server Update Service</string></strings>
Microsoft.Policies.WindowsUpdate:category:WindowsUpdateCat
<category displayName="$(string.WindowsUpdateCat)" name="WindowsUpdateCat" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Windows:WindowsComponents" />
    </category>
<strings><string id="Microsoft.Policies.WindowsUpdate:WindowsUpdateCat">Windows Update</string></strings>
Microsoft.Policies.WindowsUpdate:definition:WU_SUPPORTED_WindowsXPSP1_NoWinRT
<definition displayName="$(string.WU_SUPPORTED_WindowsXPSP1_NoWinRT)" name="WU_SUPPORTED_WindowsXPSP1_NoWinRT" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <range minVersionIndex="1" ref="unresolved(products):MicrosoftWindowsXP" />
          <range maxVersionIndex="8" minVersionIndex="3" ref="unresolved(products):MicrosoftWindows" />
        </or>
      </definition>
<strings><string id="Microsoft.Policies.WindowsUpdate:WU_SUPPORTED_WindowsXPSP1_NoWinRT">At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT</string></strings>