So I was playing Minecraft and I clicked on one my survival worlds. Right after it started to load the world, I got a blue screen error and my computer crashed. Everything is fine except all of my achievements and statistics for Minecraft are gone. Does anyone know of a way to get them back?
I'm pretty sure your achievements are gone, unfortunately. This is a known bug in Minecraft. Unclean shut-down of the client can cause this, and by your description, it certainly was an unclean shut-down.