Minecraft Opening on Both Monitors, Only One Is Responsive

Recently I have been trying to launch my minecraft, and when I try it opens on my first AND second monitor, yet only one monitor is responsive. So one monitor will be stagnant with the main menu whilst the other is showing the game. Also, I can only click on the monitor which is stagnant (which sometimes changes). And if I try clicking on the monitor showing the game, it will take both monitors back to my desktop. I have tried uninstalling and reinstalling the game about 5 times now with no avail, so some help would be nice.