this is critical part from my Autounattend.xml ... windows installed correct but drivers arent on system drive
<Path> is path into folder with inf, sys, cat files directly on DVD

CODE
  <settings pass="auditSystem">
    <component name="Microsoft-Windows-PnpCustomizationsWinPE" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
      <DriverPaths>
        <PathAndCredentials wcm:action="add" wcm:keyValue="Network">
          <Path>\\drivers\network</Path>
        </PathAndCredentials>
        <PathAndCredentials wcm:action="add" wcm:keyValue="Printer">
          <Path>\\drivers\printer</Path>
        </PathAndCredentials>
      </DriverPaths>
    </component>
  </settings>