Do not allow update deferral policies to cause scans against Windows Update
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows Server 2016, Windows 10 Version 1607
Path in the GPO console
Computer Configuration\Administrative Templates\Windows Components\Windows Update\Legacy Policies Description
Enable this policy to not allow update deferral policies to cause scans against Windows Update. If this policy is disabled or not configured, then the Windows Update client may initiate automatic scans against Windows Update while update deferral policies are enabled. Note: This policy applies only when the intranet Microsoft update service this computer is directed to is configured to support client-side targeting. If the "Specify intranet Microsoft update service location" policy is disabled or not configured, this policy has no effect.
Registry
HKLM
Software\Policies\Microsoft\Windows\WindowsUpdate Value name: DisableDualScan
Enabled: DisableDualScan = 1
Disabled: DisableDualScan = 0
MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/Update/DisableDualScan Microsoft Learn documentation Mapping data: Microsoft Learn (CC BY 4.0)
CSP values
-
0 (Default)- Allow scan against Windows Update. -
1- Don't allow update deferral policies to cause scans against Windows Update.
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: Do not allow update deferral policies to cause scans against Windows Update
; State: Enabled
; Supported on: At least Windows Server 2016, Windows 10 Version 1607
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate]
"DisableDualScan"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Do not allow update deferral policies to cause scans against Windows Update
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1607
$path = 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DisableDualScan' -Value 1 -Type DWordIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/Update/DisableDualScan
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Do not allow update deferral policies to cause scans against Windows Update
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1607
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'DisableDualScan' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Do not allow update deferral policies to cause scans against Windows Update
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1607
$path = 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DisableDualScan' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Do not allow update deferral policies to cause scans against Windows Update
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1607
# 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: Do not allow update deferral policies to cause scans against Windows Update
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1607
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
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'DisableDualScan' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Do not allow update deferral policies to cause scans against Windows Update
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1607
$path = 'HKLM:\Software\Policies\Microsoft\Windows\WindowsUpdate'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DisableDualScan' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.