So I found out that 1.10 came out and decided to try it out. When I tried making a world then joining it, minecraft kept crashing. So I went back to 1.8.9 (I don't like 1.9) and it was doing the samething. I tried looking it up and trying to see if I could fix it but I couldn't find anything. I deleted minecraft and re-downloaded it but it didn't work (I sometimes got in the world but when I press E for inventory it crashes). Could someone help me? If I need to add anything to help reply back.