Hello, I am new to this forum and OSX in general. I've recently purchased a used 2011 Macbook Pro (sweet deal!) and soon afterwards began to install Windows 8 via bootcamp. Needless to say it was an extremely frustrating process, but I eventually was successful in installing it. Windows was up and running just fine, minus an audio driver issue which I couldn't care less about at this moment. Anyways, I realized shortly afterwards that I was unable to boot into OSX. Apparently during the windows installation process all of my partitions seemed to merge together. Now, all I have is a "BOOTCAMP" partition. For now I am stuck in Windows and I am in desperate need of help to get OSX back up and running. Can anyone please help me?? I've spent hours trying to figure this out to no avail. I sincerely appreciate any advice and information whatsoever! By the way I do NOT have the original osx installation disk for the computer.