This document discusses OS deployment options using Microsoft Deployment Toolkit (MDT) and System Center Configuration Manager (SCCM). MDT 2013 added support for Windows 8.1, Windows Server 2012 R2, and Configuration Manager 2012 R2. SCCM 2012 SP1 introduced support for Windows ADK 8.0 and new task sequence steps. SCCM 2012 R2 expanded OS support and added virtual hard disk, Powershell script, and readiness check steps. The document also covers Windows 8.1 configuration options and compares MDT and SCCM deployment features. It discusses Intune integration gaps and provides best practices for imaging, including automating image creation and handling offline patching.