Borderlands Update Help

Hey there
Today after the update with the "Mechromancer" I had updated Borderlands 2 but after the update my game keeps crashing, I'll start borderlands 2 and hit play then it will come up with the loading screen then it will say "Borderlands 2 has stopped working" I am so sad

on steam go to library borderlands 2 right click press properties and go to local files and press verify that should fix it