won't lanch

Hello! I am trying to start up minecraft, but it won't work. Either it won't show up at all, or it will lanch it, load the bar up a little bit then crash. If it doesn't show up, it says minecraft is running if i try to start it again. I have tried to reboot the pc, virus scanner, play on another version, but nothing works! I don't know if it is something worng with my computer or a bug. This applys for every version, 1.7, 1.8, 1.9 i have tried so many versions!