how to master reset mac book air

[Chillondis]

I can't get passed the login password

 

[Saga Lout]

We don't give advice on password cracking here at Tom's.. You need to take it to a profession, prove ownership of the computer and pay to have it reverted to factory settings. This is because you may have bought a stolen machine and someone's eprsonal data are in there.

I removed a post which linked to a method but it didn't take the above into account.