So I'm getting ready my MacBook Air 2013 for sale. I already delete all my data and installed the OS. I tried to go through the inicial set up so when I show it to the person whos gonna buy it they can actually play with it a little bit instead of just staring at the setup screen, but it keeps asking for my name and to create a passcode when I go through the initial setup. is there a way to bypass this so I don't have to enter my name and passcode?