Parece que tiene que ser el uno o el otro, porque no agregas tu seleccion de ultimate a tu autounattend.xml <settings pass="windowsPE"> <component name="Microsoft-Windows-Setup" 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"> <ImageInstall> <OSImage> <InstallFrom> <MetaData wcm:action="add"> <Key>/IMAGE/NAME</Key> <Value>Windows 7 ULTIMATE</Value> </MetaData> </InstallFrom> <InstallToAvailablePartition>false</InstallToAvailablePartition> <WillShowUI>OnError</WillShowUI> </OSImage> </ImageInstall> </component> </settings>