it, without any problem or any need to use a pin. i don’t recall putting a password on last time i used it, but now when i start up the computer, i have to enter a pin. the message actually says ‘enter your system lock pin code to unlock this mac’. i don’t know what this pin is, and i have searched all over the computer to see if there is a code written somewhere. i have tried a few numbers that i found on the system, but always end up on the wrong side of this pin demand. i have data behind that password wall that i really need 