Where is the key for SCCM Client log file folder path

Below would be the key

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\CCM\Logging\@GLOBAL
String as "LogDirectory"
Value Data: E:\Logs\SCCMClient\


Changing this Value should be from WMI is recommended.
 

SCCM 2012 With SP1 and Updates

The realase of SCCM 2012 was very smooth, but the Sp1 created some issues, However MS updated the Binaries that resolved lot, but few of them were fixed in March 2013, by Collection of Updates we called Cumulative Update 1.

Find the direct link for Cummulative update 1 http://support.microsoft.com/kb/2817245