Minecraft Issue

Hello friends im very sad beacuse i cant play minecraft.Every time i open it and run a version like 1.8 it says an unnexpacted error has occured i dont know what is this but i want to play.I cant also download java cause im getting error 1603.i upgraded all of my graphics card and nothing happens pls help help i want your help plssssssssssssssssssssssssssssssss