I'm trying to play "Batman: Arkham Asylum". I bought it on Steam and haven't played it yet. I downloaded it and, apparently, it was successfully installed.
However, every time I try to start the game I get a message box stating
I'm running Windows 8.1 (when I installed the game, I had Win8, but I never started the game. Last night I updated to Win8.1 and then tried to run the game). I have all Windows Updates installed. I have Direct X 11 installed.