In the first three posts of my SCCM 2012 R2 posts I covered the Active Directory, SQL and Windows requirements to install Microsoft SCCM 2012 R2 in a lab environment.
SCCM 2012 R2 Pre-requisite installs part 1 Covered Active Directory and Schema Extensions
SCCM 2012 R2 Pre-requisite installs part 2 Covered SQL 2012 Additional Feature Installs (Reporting Services)
SCCM 2012 R2 Pre-requisite installs part 3 Covered the Windows 2012R2 Requirements for SCCM 2012 R2, this includes IIS, WSUS and ADK
In part 4 I cover the installation of SCCM 2012 R2 and the recently released Cumulative Update 4 (CU4).