HOW TO RESET THE LOCK IN PASSWORD
HOW TO RESET THE LOCK IN PASSWORD? THE PASSWORD WHEN YOU WANT TO MAKE A SYSTEM CHANGE
iMac 24″, macOS 14.0
Re: Reset Admin Log-in password.
If the standard steps (in the "Related Article" above your question) to reset the admin password of your Mac user account don't succeed, you may want to try the additional steps in the linked article below.
If you can't reset your Mac login password