I have been doing a lot of research on this but have not found a solution. I was playing NFS MW 2005 without any trouble on my older PC with windows 7 pro 64 bit. I recently upgraded the MB as I got it fairly inexpensive and figured why not give it a try. At first it kept getting locked up at windows logo, and then split second blue screen and the loop starts all over again. System restore/repair can't fix it. Went ahead and reinstalled 7 again. System now seems to work fine, BUT..... Every game I have tried seems to install okay, but when it loads they go to the main title screen of the game and crash. I tried installing most wanted, and burnout paradise on another machine and same thing. The hard drive on the 1st machine was a bit sketchy so I thought, maybe that's the culprit, but hard drive on 2nd machine is way above suspicion. Not sure what to do. If I click the technical tab for the game it shows fail in approx 3 of the categories even though my system has way more memory, etc. than is needed. Running in comparability mode makes no difference. Hit a brick wall here and need help. Thank you.