Allow signed updates from an intranet Microsoft update service location
Verified with Windows 11 25H2 — updated on July 10, 2026
Supported on: At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT
Path in the GPO console
Computer Configuration\Administrative Templates\Windows Components\Windows Update\Manage updates offered from Windows Server Update Service Description
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.
Registry
Software\Policies\Microsoft\Windows\WindowsUpdate Value name: AcceptTrustedPublisherCerts
Enabled: AcceptTrustedPublisherCerts = 1
Disabled: AcceptTrustedPublisherCerts = 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 signed updates from an intranet Microsoft update service location
; State: Enabled
; Supported on: At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate]
"AcceptTrustedPublisherCerts"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Allow signed updates from an intranet Microsoft update service location
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT
$path = 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AcceptTrustedPublisherCerts' -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 signed updates from an intranet Microsoft update service location
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'AcceptTrustedPublisherCerts' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow signed updates from an intranet Microsoft update service location
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT
$path = 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AcceptTrustedPublisherCerts' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Allow signed updates from an intranet Microsoft update service location
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT
# 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 signed updates from an intranet Microsoft update service location
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'AcceptTrustedPublisherCerts' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow signed updates from an intranet Microsoft update service location
# State: Enabled
# Supported on: At least Windows Server 2003 operating systems or Windows XP Professional with SP1, excluding Windows RT
$path = 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AcceptTrustedPublisherCerts' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.