

It's possible that you know the password for another admin account on your Mac (It has to be an admin account in order to make changes to different user account passwords). How to reset your Mac user account password if you know another admin account password If you've reset your account password, it's highly likely that you'll have to create a new login keychain (since it requires your old password to access). Enter the new user account password to log in.Click the arrow next to the Apple ID message.

A new option will appear after the third failed attempt. At your Mac's lock screen, try entering a password three times.This is the easiest way to reset your password. If you set up Apple ID Unlock when you created your user account, you're in luck. How to reset your Mac user account password using your Apple ID
