Yesterday afternoon a friend dropped his computer by so I could make it go a bit faster which I initially thought must just be some application using up a ton of resources or something. The issue ended up being that the computer was an older PowerPC G4 running Mac OSX 10.3 that didn’t have a lot of RAM and hadn’t been updated in a long time. I happened to have PC133 RAM to stick in it so I added 512MB of RAM and then attempted to begin the software updates which requested his administrator password which I did not have. Turns out that he didn’t have the password either so below are directions on reseting the administrator password on a Mac running OSX. The process take a little while as you are required to boot into single user mode, go back through setup, modify the admin, and then delete the temporary admin account.
Booting Mac OSX into single user mode is fairly easy though I did run into an issue when using a Windows USB keyboard. Single user mode will allow you to modify the system without logging in for items such as changing the Mac OSX administrator password. Follow the directions below to boot into single user mode on Max OSX.