Installer Password
How do I find the installer password that I forgot?"
MacBook Pro 15″, macOS 10.15
How do I find the installer password that I forgot?"
MacBook Pro 15″, macOS 10.15
If you are the first or only user, that is your Mac-specific login password, (NOT your Apple-ID password.)
If it's your Mac login password you forgot, here's how to reset it: Reset Login Password
Note that you'll need to know your AppleID/Password in order to reset your login password.
Hope this helps.
Installer Password