I am having the exact same problem. Worse yet, I installed Emperor on a win 7 machine, played a few times and BANG. Stopped working and can't reinstall with the exact same problem as the win 10 machine. I'm thinking we are the victims of a windows update. I unwind playing Emperor. Now I'm irritated. I'm going to see if I have the list of auto updates on the 7 machine and try to backtrack. Let you know if I find an answer.