First of all, I am not the most computer savvy girl around but I get by and can usually do what I need to do with help from the internet. I have a Early 2011 MacBook Pro that runs Windows 8.1 via bootcamp. I was thinking of selling it so I was looking how to format and reinstall OS X to get it ready for sale. I found directions on Apple's support site and booted up the computer using command R. The directions said to format the partition that OS X is on so I did that. However, when I go to reinstall Mavericks I can not. It said that my computer needs to be verified by Apple and then it just kicks me back out to the menu. I understand the problem now is that I am supposed to reinstall Snow Leopard, since that is what my computer had preinstalled on it. I do not have a Snow Leopard disk anymore. I have moved three times in the last three years and somehow that disk got misplaced. What is my best option now? Can I bring the computer to the genius bar and would they be able to help me out? I no longer wish to sell it, I want to keep using it since there is really nothing wrong with it and I have upgraded it to an SSD and added more RAM. I just want OS X back! Thanks for any advice!