I doesn't let me play when I click the Play Button.

It literally just doesn't work at all. When I press play it goes through stuff saying like Preparing and Finalizing, then after it finishes nothing happens. I don't get no pop up like I used to of Minecraft. This is hella fucking stupid and it used to work on my garbage PC. Now when I get a better gaming PC the simplest games don't work? Fucking stupid.