I ran it on Win8.1 with dx10 though, since I have no dx11 gpu. The vcredists and .net framework issue is tricky by the way. It is hard to help you with that issue since I can only tell you what I know from other users with similar issues. For them it always helped (you can find out more in the TWC forum). To be sure you might also select dx10 instead but I doubt thats the problem.