Chosen Solution

Hi everyone, New to all this, I bought second hand MacBook Pro Retina 2013 model (idiot). Worked 2 months perfectly. Now won’t let me start it. Asks me for some kind of password, I’m assuming it’s iCloud passworded, which I never set it up. I don’t know what to do, is there a way to fix this or I’m screwed forever.

Have you tried to reach out to the person who you bought the system from? I would start there. Hopefully they have the password. Otherwise you’re in a bit of a pickle.