One of my Macs died so bought a barely used 13" Pro (retina) on CL. Already had El Capitan, the guy said to factory reset it use command/option/r which I knew, but it's taking forever. It's just sitting on the screen with the globe spinning and progress bar only a tiny bit white and not moving for over an hour now. Looks like some people on here said it should say how much longer but mine doesn't, just the globe and progress bar. Is there an easier or faster way to do this? This is ridiculous lol. Can't be the Internet speed as its blazing fast on other computer and my phone and tablet. Edit: go figure posted this and it gave an error message, said apple.com/support -5010F whatever that means as nothing pulls up online or at Apple for that code?