Hi, I apologize if I do not write well, I do not know the language well, I use google translator. The problem is mine and 'that when I start to set fmc crashes after a few minutes, usually when I get to set the weight of the plane, while if avvil with 777 fsx fmc without setting all goes well, what could it be? Thanks

Best thing to do is submit a ticket to PMDG with your PC specs and the exact error message you receive.

 

Just out of curiosity, did you install FSX outside of the X86 folder and do you have all your permisions and security setup correctly within windows?

 

Regards