If by any chance you forgot apple id password you will not be able to change your apple id and you must first retrieve your password for that you can check out our other article on how to create icloud email. How to change apple id on macbook.
Pull down the apple menu and go to system preferences choose apple id or icloud depending on macos version.
How to change apple id in macbook air. Click edit in the account section. In the account section choose edit. Choose change apple id.
Enter the email address that you want to use. Select change apple id under your current email address. Sign in with your apple id and password.
It s possible to edit all your apple id details including the email you use to log in to your apple account. If you want to change your apple id on macbook with mac os x you can do that when you are logged into the user account you wish to change. Enter the new email and press continue.