So I encountered a glitch early this morning using Overwolf and Fullscreen Mode. Have you ever seen a TV channel that, instead of taking up the Fullscreen, takes up the middle portion, and on either side there is nothing but a black border? Every time I open my Minecraft, that's what it looks like. The picture obviously isn't Minecraft, and I don't have the border on the top and the bottom, but other than that, that's pretty much what my Minecraft looks like at the moment. It happened as I was in Minecraft and uninstalled Overwolf. My theory is that uninstalling Overwolf is what caused this, but I have absolutely no idea how to fix it. I have encountered this once before and fixed it, and the problem spawned from the same thing (uninstalling Overwolf while in Minecraft). Unfortunately I have forgotten how to fix this as it was a long time ago that I encountered this same problem. I had some ideas: 1. Uninstall and Reinstall Minecraft 2. Reinstall Overwolf (Theory here is that the game believes it's in Overwolf mode and glitched into this. It gets complicated and pretty far-fetched and to be honest it probably won't work).