SCCM 2012

Free book for SCCM 2012 from MS Field Engineers tips https://aka.ms/683044pdf

To check the Cumulative updates number , open this  registry key HKLMSOFTWAREMicrosoftSMSSetupCULevelSystem Center 2012 Configuration Manager CU1  – 5.00.7711.0200 System Center 2012 Configuration Manager SP1 CU1  – 5.00.7804.1202System Center 2012 Configuration Manager SP1 CU2  – 5.00.7804.1300System Center 2012 Configuration Manager SP1 CU3 – 5.00.7804.1400