IT is a fake. Right now the highest score any system can have is 5.9 for a Vista Rating. That is all that Vista allows at this point. I know where to find that in the registry myself. I posted one in the Vista forum where i had a score of 11.
I do not accept support questions via EMail, PM, IM or my G+ page!
Phone: LG Optimus G Pro
Running: Stock JB from LG with Nova Launcher