Windows 7 New games not running

I purchased new programs (games) the other day and they worked fine until today. When I start them up, I get an "Assertion Failure" or the screen blinks and then nothing happens. I have only one game that starts and plays (and older one), but none of the new ones will. Any ideas?:confused:


This website is not affiliated, owned, or endorsed by Microsoft Corporation. It is a member of the Microsoft Partner Program.