Hp Split x2 can't play Minecraft?

So i got an HP Split x2 and i updated everything(its running windows 8.1) and i downloaded one om my favorite games, minecraft. I have 2 issues, 1: once a world is created i can't select it again thus i can never leave a world if i want to play it again. 2: while walking in any direction the touch pad becomes useless. By that i mean i can't look around while moving.

First one no clue, second one is troublesome for me too - Try pressing another key when walking (a useless key e.g F)

15 works, Just try to put a little more details in your answer next time. If you read the whole thing it says 13-15