Step 5: remove four torx screws
You know, with the torx screwdriver.
HINT: If you're very disorganized or you're planning on leaving the thing apart for several days, immediately put the screws back in the holes they came from after you separate the parts. It's a little bit of extra work, but it'll keep the tiny screws from getting mixed up or lost on the floor. This is a good rule of thumb whenever you're taking stuff apart.