I have a late 2009 MBP which just had a hard drive fail so I bought a new one, but I lost the Snow Leopard CD so I am trying to create a bootable USB on my Windows 7 computer after obtaining a .iso image of Snow Leopard and trying to use a software like Rufus to make my USB bootable, but it doesn't seem to work on the MBP (but it works on other computers). Does that mean this model doesn't support USB booting? If not, then is this computer useless since my Windows computer does not have a CD/DVD drive I can burn Snow Leopard onto?