MBP 13" 2012 - Base model So, in some strange turn of events, I am unable to boot into either OS. I installed Windows 7 under bootcamp. All went fine, but today Windows will give me a BSOD so quickly I cannot analyze it. Most of the time, I cannot use the option key to get the bootloader. I click and hold option like no tomorrow, but it just boots into the seemingly faulty windows. When I was able to get into the bootloader (or whatever you wish to call it), it would only list the Windows partition/option. OSX would not show up. Can anyone shed light on my dilemma?