Error Loading Operating System while booting

Discussion in 'Mac Basics and Help' started by zals, Jun 15, 2014.

  1. zals macrumors newbie

    Jun 15, 2014
    Hello, Yesterday I got a used macbook and I was toying with hard drive partition, and while rebooting my mac today, It is giving me 'Error loading operating system' error in a black screen. I tried to reboot holding alt+s, and the only option I have is to boot into windows, Mac OS is not showing in the options list. now Im stuck, I cant boot into Windows or Mac. what am I supposed to do now ? :-(

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