Blue screen with error message

Hello,
I have windows 7 and after some time I play NFSMW for a long time it displayed that blue screen.I thought it would go away as it had done 5 years before(I think) but it came a second time.I restored and things went well and again it came.I restored again and (when I was playing NFSMW the blue screen displayed)and launched startup repair.It restored my computer again and please help me