Previously there was only rtm build adks. Nowadays i frequently see insiderpreview adks. Insiderpreviews are not rtm and supported releases. For to customize rtm builds need rtm adks. Forexample which adk has May update msdn winpe language packs? It should be rtm adk. Or am i lost between so much updates and releases. The one at previous post is insiderpreview adk. Enthoustiast do you mean also rtm adks labels insiderpreview adks? But previous post adk labels "prerelease"