Edit C:\Windows\PolicyDefinitions\ControlPanel.admx

??<?xml version="1.0" encoding="utf-8"?>

<policyDefinitions xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" revision="1.0" schemaVersion="1.0" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
  <policyNamespaces>
    <target prefix="controlpanel" namespace="Microsoft.Policies.ControlPanel" />
    <using prefix="windows" namespace="Microsoft.Policies.Windows" />
  </policyNamespaces>
  <resources minRequiredRevision="1.0" />
  <policies>
    <policy name="DisallowCpls" class="User" displayName="$(string.DisallowCpls)" explainText="$(string.DisallowCpls_Help)" presentation="$(presentation.DisallowCpls)" key="Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" valueName="DisallowCpl">
      <parentCategory ref="windows:ControlPanel" />
      <supportedOn ref="windows:SUPPORTED_Win2k" />
      <elements>
        <list id="DisallowCplsList" key="Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowCpl" valuePrefix="" />
      </elements>
    </policy>
    <policy name="ForceClassicControlPanel" class="User" displayName="$(string.ForceClassicControlPanel)" explainText="$(string.ForceClassicControlPanel_Help)" key="Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" valueName="ForceClassicControlPanel">
      <parentCategory ref="windows:ControlPanel" />
      <supportedOn ref="windows:SUPPORTED_WindowsXP" />
      <enabledValue>
        <decimal value="1" />
      </enabledValue>
      <disabledValue>
        <decimal value="0" />
      </disabledValue>
    </policy>
    <policy name="NoControlPanel" class="User" displayName="$(string.NoControlPanel)" explainText="$(string.NoControlPanel_Help)" key="Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" valueName="NoControlPanel">
      <parentCategory ref="windows:ControlPanel" />
      <supportedOn ref="windows:SUPPORTED_Win2k" />
    </policy>
    <policy name="RestrictCpls" class="User" displayName="$(string.RestrictCpls)" explainText="$(string.RestrictCpls_Help)" presentation="$(presentation.RestrictCpls)" key="Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" valueName="RestrictCpl">
      <parentCategory ref="windows:ControlPanel" />
      <supportedOn ref="windows:SUPPORTED_Win2k" />
      <elements>
        <list id="RestrictCplsList" key="Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\RestrictCpl" valuePrefix="" />
      </elements>
    </policy>
  </policies>
</policyDefinitions>

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