First thing you do with any game on Steam is to verify the integrity of the game files. Short of that, the most likely problem is that it's simply a bug in a new game.
However, if it isn't one of those, the most likely problem is corrupted system files. I would start by trying a simple reboot. If that doesn't work, then shut the system down and leave it off for a few minutes and then start it again. Next you could try scanning with a system file checker from the Command Prompt. As a last resort, you could do a clean reinstallation of Windows.
Other problems it could be would be malware or failing RAM, etc. so before you go so far as reinstalling Windows, I would check for those problems.