Here's my situation. I just purchased my new Macbook Pro Retina. I will be giving my mid 2007 Macbook Pro to my girlfriend. I want to load Lion or Mountain Lion, hopefully arriving next week, onto the 2007 MBP with a fresh install, completely wiping the computer to new. I should note that the 2007 MBP's disc drive is no longer functioning. What would be the best process to get a clean version of an operating system on the machine to where I am no longer an admin and the OS isn't connected to my Apple ID or account? Thanks.