This didn't work for me. Upon 3rd bullet point 'Reboot back into OS X' my system kept showing me the apple logo, black background and status bar. When the statu

This didn't work for me. Upon 3rd bullet point 'Reboot back into OS X' my system kept showing me the apple logo, black background and status bar. When the status bar progressed ~30%, information about my system would popup and then stagnate/momentarily freeze. Then the system would go to black saying 'os had a problem, rebooting in a few seconds' then...it would repeat this process again and again, without any input from me. I'm not sure what to do to fix this.