How do I factory reset without the disk
Hi I just bought a Macbook through a friend. I know it is not stolen it just has more than one previous owner. That being said I do not have the password for the Itunes and do not have the original CD. It is running 10.5.6 and I would like to clean the hard drive so that I can use it without any of the previous owners information be left behind on it. When trying to erase it from the disk utility the erase button is grayed out.
I am really not sure where I go from here.
Thanks for your help,
Max
MacBook, Mac OS X (10.5.4), Hard Drive Erase