She owns either a 2007 or 2008 MacBook that her ex-boyfriend gave to her but it needs a password. Due to obvious reasons, she doesn't want to reach back out to him (even though it was a gift, it would be awkward she says). I suggested she purchase a Snow Leopard disc from Apple so she could reformat the MacBook. She doesn't have the original install disc. 1) Would this work or do you need the password even to get into the boot menu? 2) Will the Snow Leopard disc allow a clean install or do we need to buy a Leopard disc, install it, and then buy a Snow Leopard disc? 3) Her Macbook is either a 2007 or 2008 model. Would Snow Leopard run okay on a Mac this old?