will not load game on windows 8 saying system has crashed.

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2.went to minecraft logged in and pushed play ...
3.alert popped up that the system has crashed ...