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

7 settingsCSV

Windows Components › Remote Desktop Services › Remote Desktop Session Host › Connections

Turn off Fair Share CPU Scheduling

ComputerIntune-readyTS_ENABLE_DFSS

Supported on At least Windows Server 2008 R2

25H2 · 1.0

What it does

Fair Share CPU Scheduling dynamically distributes processor time across all Remote Desktop Services sessions on the same RD Session Host server, based on the number of sessions and the demand for processor time within each session. If you enable this policy setting, Fair Share CPU Scheduling is turned off. If you disable or do not configure this policy setting, Fair Share CPU Scheduling is turned on.

What it writes

Hive: HKEY_LOCAL_MACHINE
Registry key: SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System
Value name: EnableCpuQuota
When enabled: DWORD 0
When disabled: DWORD 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.

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\Session Manager\Quota System]
"EnableCpuQuota"=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: Turn off Fair Share CPU Scheduling
# Name: TS_ENABLE_DFSS
# Scope: Machine
# State: Enabled
# Source: terminalserver-server.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System' -Name 'EnableCpuQuota' -PropertyType 'DWord' -Value 0

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System' -Name 'EnableCpuQuota' -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_terminalserver-server/TS_ENABLE_DFSS

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_terminalserver-server/TS_ENABLE_DFSS</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: Turn off Fair Share CPU Scheduling
# Name: TS_ENABLE_DFSS
# Scope: Machine
# State: Enabled
# Source: terminalserver-server.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System' -Name 'EnableCpuQuota' -Kind 'DWord' -Expected 0
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System\EnableCpuQuota') | Out-Null
}

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System' -Name 'EnableCpuQuota' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System\EnableCpuQuota') | 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 Fair Share CPU Scheduling
# Name: TS_ENABLE_DFSS
# Scope: Machine
# State: Enabled
# Source: terminalserver-server.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System' -Name 'EnableCpuQuota' -PropertyType 'DWord' -Value 0

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System' -Name 'EnableCpuQuota' -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: TS_ENABLE_DFSS
Namespace: Microsoft.Policies.TerminalServer-Server
Template file: terminalserver-server.admx
Release: Windows 11 25H2 · 1.0 · file set de4e49983ebd651f…

Definition, editor controls and support

Definition

<policy class="Machine" displayName="$(string.TS_ENABLE_DFSS)" explainText="$(string.TS_ENABLE_DFSS_EXPLAIN)" key="SOFTWARE\Policies\Microsoft\Windows\Session Manager\Quota System" name="TS_ENABLE_DFSS" valueName="EnableCpuQuota" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
		<parentCategory ref="Microsoft.Policies.TerminalServer:TS_CONNECTIONS" />
		<supportedOn ref="Microsoft.Policies.TerminalServer:TS_SUPPORTED_Windows7_Server" />
		<enabledValue>
			<decimal value="0" />
		</enabledValue>
		<disabledValue>
			<decimal value="1" />
		</disabledValue>
	</policy>

Editor controls

Supported platforms and category

Microsoft.Policies.TerminalServer:category:TS_CONNECTIONS
<category displayName="$(string.TS_CONNECTIONS)" explainText="$(string.TS_CONNECTIONS_Help)" name="TS_CONNECTIONS" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.TerminalServer:TS_TERMINAL_SERVER" />
    </category>
Microsoft.Policies.TerminalServer:category:TS_GP_NODE
<category displayName="$(string.TS_GP_NODE)" explainText="$(string.TS_User_Help)" name="TS_GP_NODE" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Windows:WindowsComponents" />
    </category>
Microsoft.Policies.TerminalServer:category:TS_TERMINAL_SERVER
<category displayName="$(string.TS_TERMINAL_SERVER)" explainText="$(string.TS_TERMINAL_SERVER_Help)" name="TS_TERMINAL_SERVER" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.TerminalServer:TS_GP_NODE" />
    </category>
Microsoft.Policies.TerminalServer:definition:TS_SUPPORTED_Windows7_Server
<definition displayName="$(string.TS_SUPPORTED_Windows7_Server)" name="TS_SUPPORTED_Windows7_Server" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <reference minVersionIndex="1" ref="Microsoft.Policies.Products:WindowsServer2008_R2" />
        </or>
      </definition>
Microsoft.Policies.TerminalServer:unresolved:Microsoft.Policies.Products:WindowsServer2008_R2
<unresolved reference="Microsoft.Policies.Products:WindowsServer2008_R2" />
Microsoft.Policies.Windows:category:WindowsComponents
<category displayName="$(string.WindowsComponents)" explainText="$(string.WindowsComponents_Help)" name="WindowsComponents" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Microsoft.Policies.TerminalServer:category:TS_CONNECTIONS
<category displayName="$(string.TS_CONNECTIONS)" explainText="$(string.TS_CONNECTIONS_Help)" name="TS_CONNECTIONS" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.TerminalServer:TS_TERMINAL_SERVER" />
    </category>
<strings><string id="Microsoft.Policies.TerminalServer:TS_CONNECTIONS">Connections</string><string id="Microsoft.Policies.TerminalServer:TS_CONNECTIONS_Help">Controls connection settings on a Remote Desktop Session Host server</string></strings>
Microsoft.Policies.TerminalServer:category:TS_GP_NODE
<category displayName="$(string.TS_GP_NODE)" explainText="$(string.TS_User_Help)" name="TS_GP_NODE" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Windows:WindowsComponents" />
    </category>
<strings><string id="Microsoft.Policies.TerminalServer:TS_GP_NODE">Remote Desktop Services</string><string id="Microsoft.Policies.TerminalServer:TS_User_Help">Controls configuration of Remote Desktop Services technologies that enable access to a server running Windows-based programs or the full Windows desktop</string></strings>
Microsoft.Policies.TerminalServer:category:TS_TERMINAL_SERVER
<category displayName="$(string.TS_TERMINAL_SERVER)" explainText="$(string.TS_TERMINAL_SERVER_Help)" name="TS_TERMINAL_SERVER" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.TerminalServer:TS_GP_NODE" />
    </category>
<strings><string id="Microsoft.Policies.TerminalServer:TS_TERMINAL_SERVER">Remote Desktop Session Host</string><string id="Microsoft.Policies.TerminalServer:TS_TERMINAL_SERVER_Help">Controls configuration of a Remote Desktop Session Host server</string></strings>
Microsoft.Policies.TerminalServer:definition:TS_SUPPORTED_Windows7_Server
<definition displayName="$(string.TS_SUPPORTED_Windows7_Server)" name="TS_SUPPORTED_Windows7_Server" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <reference minVersionIndex="1" ref="Microsoft.Policies.Products:WindowsServer2008_R2" />
        </or>
      </definition>
<strings><string id="Microsoft.Policies.TerminalServer:TS_SUPPORTED_Windows7_Server">At least Windows Server 2008 R2</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>