Forum:Finishing mass effect

I've began playing the fist Mass Effect,and managed to get to the final mission with no problem.But now that I'm on this mission everytime I get to a certain part,my game crashes preventing me from finishing the game.I tried doing lots of things,evene reinstalling the game,but nothing worked.So I'd like to know if anyone could help me by finishing playing my save so I would not lost all of it,and so would be able to continue this trilogy taht I absolutely love.Please help me!!!

Ps:My shepard is a female paragon.