restoring Mac to factory settings

[Littlemoreuser]

Hi,

I've purchased my Mac book from a friend. It still has his name and password on which he cannot remember. Am i correct in assuming that if I restore it to the origianl factory settings then it will erase his settings. Also will i need anything erlse with the start up like serial numbers, auth codes etc?

Thanks in advance

 

[spinnerlys]

Installing Mac OS X 10.5 Leopard

Mac OS X v10.6 Snow Leopard: How to Erase and Install

That will ERASE all data on the Mac. Mac OS X does not need a serial number or any other kind of authorisation.

MRoogle on "mac factory settings"