My friend just gave me a power mac g4 and monitor, and well it has usernames with passwords on them, and im not sure what to do. He knows none of them since it is his aunts who just moved away to arizona (weird family problems i suppose -.-) but i dont kno wwhat to do. Is there a way to bypass the passwords or delete the usernames? Or format the hd as its starting up anything like that? Also is there a way to format a mac hd and install windows and say run windows on the g4 properly? More importantly is this password problem. Can anyone PLEASEEEE help ME??!!?