Configure auto-restart warning notifications schedule for updates

ComputerNative Intune settingRestartWarnRemind

Supported on Windows Server 2016 through Windows Server 2022, or Windows 10

25H2 · 1.0

What it does

Enable this policy to control when notifications are displayed to warn users about a scheduled restart for the update installation deadline. Users are not able to postpone the scheduled restart once the deadline has been reached and the restart is automatically executed. Specifies the amount of time prior to a scheduled restart to display the warning reminder to the user. You can specify the amount of time prior to a scheduled restart to notify the user that the auto restart is imminent to allow them time to save their work. If you disable or do not configure this policy, the default notification behaviors will be used.

What it writes

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

In Intune

Native Intune setting: Yes — Policy CSP

./Device/Vendor/MSFT/Policy/Config/Update/ScheduleImminentRestartWarningUpdate on Microsoft LearnSets the option “Warning (mins)”.Windows builds listed: 10.0.15063.
./Device/Vendor/MSFT/Policy/Config/Update/ScheduleRestartWarningUpdate on Microsoft LearnSets the option “Reminder (hours)”.Windows builds listed: 10.0.15063.

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

Options

Option	Type	Registry value	Allowed values
Reminder (hours)RequiredDefault: 4	Drop-down list	`ScheduleRestartWarning`	2`2` 4`4` 8`8` 12`12` 24`24`
Warning (mins)RequiredDefault: 15	Drop-down list	`ScheduleImminentRestartWarning`	15`15` 30`30` 60`60`

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\Windows\WindowsUpdate]
"ScheduleImminentRestartWarning"=dword:0000000F
"ScheduleRestartWarning"=dword:00000004
"SetRestartWarningSchd"=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: Configure auto-restart warning notifications schedule for updates
# Name: RestartWarnRemind
# Scope: Machine
# State: Enabled
# Source: WindowsUpdate.admx

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

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'ScheduleRestartWarning' -PropertyType 'DWord' -Value 4

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'ScheduleImminentRestartWarning' -PropertyType 'DWord' -Value 15

These deployment candidates come from the ADMX template; they are separate from the native CSP mapping above.

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/RestartWarnRemind

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/RestartWarnRemind</LocURI>
        </Target>
        <Data>&lt;enabled/&gt;
&lt;data id="RestartWarnRemind" value="4"/&gt;
&lt;data id="RestartWarn" value="15"/&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: Configure auto-restart warning notifications schedule for updates
# Name: RestartWarnRemind
# Scope: Machine
# State: Enabled
# Source: WindowsUpdate.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'SetRestartWarningSchd' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate\SetRestartWarningSchd') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'ScheduleRestartWarning' -Kind 'DWord' -Expected 4
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate\ScheduleRestartWarning') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'ScheduleImminentRestartWarning' -Kind 'DWord' -Expected 15
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate\ScheduleImminentRestartWarning') | 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: Configure auto-restart warning notifications schedule for updates
# Name: RestartWarnRemind
# Scope: Machine
# State: Enabled
# Source: WindowsUpdate.admx

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

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'ScheduleRestartWarning' -PropertyType 'DWord' -Value 4

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\WindowsUpdate' -Name 'ScheduleImminentRestartWarning' -PropertyType 'DWord' -Value 15

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: RestartWarnRemind
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="$(string.RestartWarningSchd_Title)" explainText="$(string.RestartWarningSchd_Help)" key="Software\Policies\Microsoft\Windows\WindowsUpdate" name="RestartWarnRemind" presentation="$(presentation.RestartWarningSchd_Title)" valueName="SetRestartWarningSchd" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.WindowsUpdate:PreSV" />
      <supportedOn ref="Microsoft.Policies.WindowsUpdate:WU_SUPPORTED_Server2016_Through_Server2022_Or_Windows10" />
      <enabledValue>
        <decimal value="1" />
      </enabledValue>
      <disabledValue>
        <decimal value="0" />
      </disabledValue>
      <elements>
        <enum id="RestartWarnRemind" required="true" valueName="ScheduleRestartWarning">
          <item displayName="$(string.RestartWarnRemindHours2)">
            <value>
              <decimal value="2" />
            </value>
          </item>
          <item displayName="$(string.RestartWarnRemindHours4)">
            <value>
              <decimal value="4" />
            </value>
          </item>
          <item displayName="$(string.RestartWarnRemindHours8)">
            <value>
              <decimal value="8" />
            </value>
          </item>
          <item displayName="$(string.RestartWarnRemindHours12)">
            <value>
              <decimal value="12" />
            </value>
          </item>
          <item displayName="$(string.RestartWarnRemindHours24)">
            <value>
              <decimal value="24" />
            </value>
          </item>
        </enum>
        <enum id="RestartWarn" required="true" valueName="ScheduleImminentRestartWarning">
          <item displayName="$(string.RestartWarnMins15)">
            <value>
              <decimal value="15" />
            </value>
          </item>
          <item displayName="$(string.RestartWarnMins30)">
            <value>
              <decimal value="30" />
            </value>
          </item>
          <item displayName="$(string.RestartWarnMins60)">
            <value>
              <decimal value="60" />
            </value>
          </item>
        </enum>
      </elements>
    </policy>

Editor controls

<presentation id="RestartWarningSchd_Title" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <text>Specify the period for auto-restart warning reminder notifications:</text>
        <dropdownList defaultItem="1" noSort="true" refId="RestartWarnRemind">Reminder (hours): </dropdownList>
        <text>Specify the period for auto-restart immiment warning notifications:</text>
        <dropdownList defaultItem="0" noSort="true" refId="RestartWarn">Warning (mins): </dropdownList>
      </presentation>

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:PreSV
<category displayName="$(string.PreSV)" name="PreSV" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.WindowsUpdate:WindowsUpdateCat" />
    </category>
Microsoft.Policies.WindowsUpdate:category:WindowsUpdateCat
<category displayName="$(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_Server2016_Through_Server2022_Or_Windows10
<definition displayName="$(string.WU_SUPPORTED_Server2016_Through_Server2022_Or_Windows10)" name="WU_SUPPORTED_Server2016_Through_Server2022_Or_Windows10" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <range maxVersionIndex="14" minVersionIndex="13" ref="unresolved(products):MicrosoftWindows" />
        </or>
      </definition>
Microsoft.Policies.WindowsUpdate:unresolved:unresolved(products):MicrosoftWindows
<unresolved reference="unresolved(products):MicrosoftWindows" />
Microsoft.Policies.Windows:category:WindowsComponents
<category displayName="$(string.WindowsComponents)" explainText="$(string.WindowsComponents_Help)" name="WindowsComponents" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Microsoft.Policies.Windows:WindowsComponents">Windows Components</string><string id="Microsoft.Policies.Windows:WindowsComponents_Help">Contains settings for operating system components.</string></strings>
Microsoft.Policies.WindowsUpdate:category:PreSV
<category displayName="$(string.PreSV)" name="PreSV" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.WindowsUpdate:WindowsUpdateCat" />
    </category>
<strings><string id="Microsoft.Policies.WindowsUpdate:PreSV">Legacy Policies</string></strings>
Microsoft.Policies.WindowsUpdate:category:WindowsUpdateCat
<category displayName="$(string.WindowsUpdateCat)" name="WindowsUpdateCat" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Windows:WindowsComponents" />
    </category>
<strings><string id="Microsoft.Policies.WindowsUpdate:WindowsUpdateCat">Windows Update</string></strings>
Microsoft.Policies.WindowsUpdate:definition:WU_SUPPORTED_Server2016_Through_Server2022_Or_Windows10
<definition displayName="$(string.WU_SUPPORTED_Server2016_Through_Server2022_Or_Windows10)" name="WU_SUPPORTED_Server2016_Through_Server2022_Or_Windows10" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <range maxVersionIndex="14" minVersionIndex="13" ref="unresolved(products):MicrosoftWindows" />
        </or>
      </definition>
<strings><string id="Microsoft.Policies.WindowsUpdate:WU_SUPPORTED_Server2016_Through_Server2022_Or_Windows10">Windows Server 2016 through Windows Server 2022, or Windows 10</string></strings>