My friend bought the game and we have been trying to install it. The InstallAnywhere program that starts the installation stops after an error saying "multiple launches of this installer is not allowed. it will now quit"
We have tried everything we could find on Google. It seems this is generally a mac problem, but he is using a PC and we are unable to get it to work.
I also tried to send him my Bethesda.net_launcher, but that does nothing.
He was able to play on beta, but now that he bought the game he cannot install it anymore.