If you want to deploy Windows Server Technical Preview using MDT 2013 follow the instruction in these blog posts:
- Beyond unsupported – Deploying Windows Technical Preview with MDT 2013 by Johan Arwidmark
- Deploy Windows 10, Windows Server, and Hyper-V Server Technical Preview Using MDT 2013 by Frank Lesniak
Though these are for Windows 10 Technical Preview deployment, it works the same for Windows Server Technical Preview.
