Problems With Flight Sim X and 8.1

So since i have updated my pc and os to 8.1 i have tried to play fsx all i get is crash after crash after crash. I have tried using all these remedies like updating fsx to service pack 1 and 2 and changing the frame rate yet to no avail. Its getting to the point that i might have to go to xplane 10. I will list my relevant specs below and hopefully someone has fixed this problem.

Cpu : Amd FX 6300

Gpu: Amd HD6670

Ram: 8Gb Cosair Vengence