Please go through the below document
Have a look
I think OS: Win server 2012 R2 (64 bit ) is not supported platform to install OBIEE
Thanks Partik, I see the document has been last revised on Feb 2012, shouldn't there be an revised version of the document? Even I am not able to find any such document. Any thoughts?
I checked in oracle support also I think this is the one which is now avail as latest revised on Feb 2012.
If you want go through the below document
Oracle Business Intelligence Enterprise Edition (OBIEE) Certification Matrix (Doc ID 1109260.1)