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Turn off .NET Framework Setup

Computer and userIntune-readyIZ_Policy_WinFXRuntimeComponent_3

Supported on At least Internet Explorer 7.0

25H2 · 1.0

What it does

This policy setting prevents the user's computer from starting Microsoft .NET Framework Setup when the user is browsing to .NET Framework content in Internet Explorer. The .NET Framework is the next-generation platform for Windows. It uses the common language runtime and incorporates support from multiple developer tools. It includes the new managed code APIs for Windows. If you enable this policy setting, .NET Framework Setup is turned off. The user cannot change this behavior. If you disable this policy setting, .NET Framework Setup is turned on. The user cannot change this behavior. If you do not configure this policy setting, .NET Framework Setup is turned on by default. The user can change this behavior.

What it writes

Hive: HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry key: Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1

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.

Options

Option	Type	Registry value	Allowed values
.NET Framework SetupRequiredDefault: Enable	Drop-down list	`2600`	Enable`3` Disable`0`

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\CurrentVersion\Internet Settings\Zones\1]
"2600"=dword:00000003

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: Turn off .NET Framework Setup
# Name: IZ_Policy_WinFXRuntimeComponent_3
# Scope: Machine
# State: Enabled
# Source: inetres.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1' -Name '2600' -PropertyType 'DWord' -Value 3

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_inetres/IZ_Policy_WinFXRuntimeComponent_3

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_inetres/IZ_Policy_WinFXRuntimeComponent_3</LocURI>
        </Target>
        <Data>&lt;enabled/&gt;
&lt;data id="IZ_Partname2600" value="0"/&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: Turn off .NET Framework Setup
# Name: IZ_Policy_WinFXRuntimeComponent_3
# Scope: Machine
# State: Enabled
# Source: inetres.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1' -Name '2600' -Kind 'DWord' -Expected 3
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2600') | 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: Turn off .NET Framework Setup
# Name: IZ_Policy_WinFXRuntimeComponent_3
# Scope: Machine
# State: Enabled
# Source: inetres.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1' -Name '2600' -PropertyType 'DWord' -Value 3

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: IZ_Policy_WinFXRuntimeComponent_3
Namespace: Microsoft.Policies.InternetExplorer
Template file: inetres.admx
Release: Windows 11 25H2 · 1.0 · file set de4e49983ebd651f…

Definition, editor controls and support

Definition

<policy class="Both" displayName="$(string.IZ_Policy_WinFXRuntimeComponent)" explainText="$(string.IZ_Policy_WinFXRuntimeComponent_Explain)" key="Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1" name="IZ_Policy_WinFXRuntimeComponent_3" presentation="$(presentation.IZ_Policy_WinFXRuntimeComponent)" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:IZ_IntranetZone" />
      <supportedOn ref="Microsoft.Policies.InternetExplorer:SUPPORTED_IE7" />
      <elements>
        <enum id="IZ_Partname2600" required="true" valueName="2600">
          <item displayName="$(string.IZ_ItemnameEnable)">
            <value>
              <decimal value="3" />
            </value>
          </item>
          <item displayName="$(string.IZ_ItemnameDisable)">
            <value>
              <decimal value="0" />
            </value>
          </item>
        </enum>
      </elements>
    </policy>

Editor controls

<presentation id="IZ_Policy_WinFXRuntimeComponent" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <dropdownList defaultItem="0" noSort="true" refId="IZ_Partname2600">.NET Framework Setup</dropdownList>
      </presentation>

Supported platforms and category

Microsoft.Policies.InternetExplorer:category:IZ_IntranetZone
<category displayName="$(string.IZ_IntranetZone)" name="IZ_IntranetZone" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:IZ_SecurityPage" />
    </category>
Microsoft.Policies.InternetExplorer:category:IZ_SecurityPage
<category displayName="$(string.IZ_SecurityPage)" explainText="$(string.IZ_SecurityPageExplain)" name="IZ_SecurityPage" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:InternetCPL" />
    </category>
Microsoft.Policies.InternetExplorer:category:InternetCPL
<category displayName="$(string.InternetCPL)" explainText="$(string.IE_ExplainInternetCPLCategory)" name="InternetCPL" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:InternetExplorer" />
    </category>
Microsoft.Policies.InternetExplorer:category:InternetExplorer
<category displayName="$(string.InternetExplorer)" explainText="$(string.IE_ExplainCat)" name="InternetExplorer" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Windows:WindowsComponents" />
    </category>
Microsoft.Policies.InternetExplorer:definition:SUPPORTED_IE7
<definition displayName="$(string.SUPPORTED_IE7)" name="SUPPORTED_IE7" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <range minVersionIndex="7" ref="Microsoft.Policies.Products:InternetExplorer" />
        </or>
      </definition>
Microsoft.Policies.Products:product:InternetExplorer
sha256:f287ee590cbba46b7a95511866303967b9370c7c7d81185659d675ca19b05d72
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.InternetExplorer:category:IZ_IntranetZone
<category displayName="$(string.IZ_IntranetZone)" name="IZ_IntranetZone" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:IZ_SecurityPage" />
    </category>
<strings><string id="Microsoft.Policies.InternetExplorer:IZ_IntranetZone">Intranet Zone</string></strings>
Microsoft.Policies.InternetExplorer:category:IZ_SecurityPage
<category displayName="$(string.IZ_SecurityPage)" explainText="$(string.IZ_SecurityPageExplain)" name="IZ_SecurityPage" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:InternetCPL" />
    </category>
<strings><string id="Microsoft.Policies.InternetExplorer:IZ_SecurityPage">Security Page</string><string id="Microsoft.Policies.InternetExplorer:IZ_SecurityPageExplain">If you enable any policies for the security page, it is strongly recommended that you also configure policy to disable the security page from being presented in the UI to prevent users from believing that they can change their security settings.

You can disable the security page using the policy located at Administrative Templates\Windows Components\Internet Explorer\Internet Control Panel\.</string></strings>
Microsoft.Policies.InternetExplorer:category:InternetCPL
<category displayName="$(string.InternetCPL)" explainText="$(string.IE_ExplainInternetCPLCategory)" name="InternetCPL" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:InternetExplorer" />
    </category>
<strings><string id="Microsoft.Policies.InternetExplorer:IE_ExplainInternetCPLCategory">Contains settings that control features found in the Internet Options dialog.</string><string id="Microsoft.Policies.InternetExplorer:InternetCPL">Internet Control Panel</string></strings>
Microsoft.Policies.InternetExplorer:category:InternetExplorer
<category displayName="$(string.InternetExplorer)" explainText="$(string.IE_ExplainCat)" name="InternetExplorer" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Windows:WindowsComponents" />
    </category>
<strings><string id="Microsoft.Policies.InternetExplorer:IE_ExplainCat">Contains settings to configure Internet Explorer</string><string id="Microsoft.Policies.InternetExplorer:InternetExplorer">Internet Explorer</string></strings>
Microsoft.Policies.InternetExplorer:definition:SUPPORTED_IE7
<definition displayName="$(string.SUPPORTED_IE7)" name="SUPPORTED_IE7" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <range minVersionIndex="7" ref="Microsoft.Policies.Products:InternetExplorer" />
        </or>
      </definition>
<strings><string id="Microsoft.Policies.InternetExplorer:SUPPORTED_IE7">At least Internet Explorer 7.0</string></strings>
Microsoft.Policies.Products:product:InternetExplorer
<product displayName="$(string.InternetExplorer)" name="InternetExplorer" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <majorVersion displayName="$(string.InternetExplorer30)" name="InternetExplorer30" versionIndex="3" />
        <majorVersion displayName="$(string.InternetExplorer40)" name="InternetExplorer40" versionIndex="4" />
        <majorVersion displayName="$(string.InternetExplorer50)" name="InternetExplorer50" versionIndex="5" />
        <majorVersion displayName="$(string.InternetExplorer60)" name="InternetExplorer60" versionIndex="6" />
        <majorVersion displayName="$(string.InternetExplorer70)" name="InternetExplorer70" versionIndex="7" />
        <majorVersion displayName="$(string.InternetExplorer80)" name="InternetExplorer80" versionIndex="8" />
        <majorVersion displayName="$(string.InternetExplorer90)" name="InternetExplorer90" versionIndex="9" />
        <majorVersion displayName="$(string.InternetExplorer100)" name="InternetExplorer100" versionIndex="10" />
        <majorVersion displayName="$(string.InternetExplorer110)" name="InternetExplorer110" versionIndex="11" />
      </product>
<strings><string id="Microsoft.Policies.Products:InternetExplorer">Internet Explorer</string><string id="Microsoft.Policies.Products:InternetExplorer100">Internet Explorer 10</string><string id="Microsoft.Policies.Products:InternetExplorer110">Internet Explorer 11</string><string id="Microsoft.Policies.Products:InternetExplorer30">Internet Explorer 3</string><string id="Microsoft.Policies.Products:InternetExplorer40">Internet Explorer 4</string><string id="Microsoft.Policies.Products:InternetExplorer50">Internet Explorer 5</string><string id="Microsoft.Policies.Products:InternetExplorer60">Internet Explorer 6</string><string id="Microsoft.Policies.Products:InternetExplorer70">Internet Explorer 7</string><string id="Microsoft.Policies.Products:InternetExplorer80">Internet Explorer 8</string><string id="Microsoft.Policies.Products:InternetExplorer90">Internet Explorer 9</string></strings>
Microsoft.Policies.Windows:category:WindowsComponents
<category displayName="$(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>