Hi All, I'm a newbie Mac user. I've received a hand me down MAC from the company I work for. It had boot camp installed and allowed me to use it as a PC or MAC. Having thought it really strange to have Windows on a MAC, I decided to research "how to remove Windows from MAC, following some instructions I found on Google. After my tinkering about I'm now unable to boot as a MAC or Windows. When I try booting in MAC I get the grey apple logo on white background with the wheel of death. When I try booting using the Windows option I get the "operating system missing" warning message. Now it's useless as a Windows or MAC, how do I resolve this?