Steps to perform on primary domain controller (DC) Extend AD schema Log in using a domain admin account Insert ConfigMgr 2012 SP1 DVD Open a command prompt window Type D:\SMSSETUP\BIN\X64\EXTADSCH.EXE and press Enter. Wait for a confirmation message in CMD window and then check for the existence of ExtADSch.log file in the root of C: … Continue reading Step-by-step guide to install Configuration Manager 2012 SP1 R2