· Support for the Windows Assessment and Deployment Kit (ADK) for Windows 8.1.
· Support for deployment of Windows 8.1 and Windows Server 2012 R2.
· Support for System Center 2012 R2 Configuration Manager.
· Improved support x86-based Unified Extensible Firmware Interface (UEFI) systems.
Download it here: Microsoft Deployment Toolkit (MDT) 2013