Reset Administrator P/Word on 10.4.11
I have a iMac Desktop computer running 10.4.11 - I am trying to upgrade to OS however this is an old office computer which was set up before my employment started and therefore I don't know the administrator password. How can I reset this please.
I have read a few of the forums on here which suggestion to power up the computer holding down the commander and R button and then using the terminal to run a reset password command however this has not worked.
Can anyone suggest anything for me?