Edit C:\Windows\PolicyDefinitions\WorkFolders-Client.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="WorkFolders" namespace="Microsoft.Policies.WorkFolders" />
    <using prefix="windows" namespace="Microsoft.Policies.Windows" />
  </policyNamespaces>
  <resources minRequiredRevision="1.0" />
  <categories>
    <category name="Cat_WorkFolders" displayName="$(string.Cat_WorkFolders)">
      <parentCategory ref="windows:WindowsComponents" />
    </category>
  </categories>
  <policies>
    <policy name="Pol_MachineEnableWorkFolders" 
            clientExtension="{4d968b55-cac2-4ff5-983f-0a54603781a3}" 
            class="Machine" 
            displayName="$(string.Pol_MachineEnableWorkFolders)" 
            explainText="$(string.Pol_MachineEnableWorkFolders_Help)" 
            key="Software\Policies\Microsoft\Windows\WorkFolders"
            valueName="AutoProvision">
      <parentCategory ref="Cat_WorkFolders" />
      <supportedOn ref="windows:SUPPORTED_Windows_6_3_NOSERVER" />
      <enabledValue>
        <decimal value="1" />
      </enabledValue>
      <disabledValue>
        <decimal value="0" />
      </disabledValue>
    </policy>
    <policy name="Pol_UserEnableWorkFolders" 
            clientExtension="{4d968b55-cac2-4ff5-983f-0a54603781a3}" 
            class="User" 
            displayName="$(string.Pol_UserEnableWorkFolders)" 
            explainText="$(string.Pol_UserEnableWorkFolders_Help)" 
            presentation="$(presentation.Pol_EnableWorkFolders)" 
            key="Software\Policies\Microsoft\Windows\WorkFolders">
      <parentCategory ref="Cat_WorkFolders" />
      <supportedOn ref="windows:SUPPORTED_Windows_6_3_NOSERVER" />
      <elements>
        <text id="Lbl_ServerURL_Edit" valueName="SyncUrl" />
        <boolean id="Lbl_AutoProvision_Chk" valueName="AutoProvision">
          <trueValue>
            <decimal value="1" />
          </trueValue>
          <falseValue>
            <decimal value="0" />
          </falseValue>
        </boolean>
      </elements>
    </policy>
  </policies>
</policyDefinitions>

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