Basically, I bought a used Mac Mini and I had to reinstall it. Trying to do so following a tutorial and it told me to boot into the recovery, remove the partition and then use the Reinstall Mac OS X option.
I did that, entered the details for the Apple ID I created to do this and it just shows me this: (http://i.imgur.com/5jrNiId.jpg)
Is there any way around this? I don't have access to the previous owner's Apple ID and I created mine just to do this. The partition is gone so there's no way to restore it to that either.