Share You got yourself a new Mac, but what should you do with the old one? If it’s still working you could give it to a loved one or even try to sell it, but you’re not going to want your applications and files on there. It’s time for a factory reset. We’ve explained how to factory reset a Windows computer but the process is obviously different for Apple’s line of computers. It’s also a little different depending on how old your Mac is. Here’s a quick guide to a…