This might be a dumb questions but im new and im just trying to figure out all about macbooks and the os. I bought a hard drive not knowing windows was installed on it and since my battery on my macbook is dead and the charger is being shipped i was wondering if i hook the hard drive up to my pc as a external hard drive can i format it for a mac and possibly install the os on it from my pc cd drive? Any help would be great. My pc is running windows 7 if that means anything.