User blog comment:ImGonnaBeThatGuy/Computer Problems/@comment-24304936-20140701175026/@comment-24304936-20140702163957

Ahh. Yeah, that screams "bad hard drive". You probably have corrupt sectors preventing the OS from loading. Fortunately, new hard drives are cheap (check out newegg.com), and pretty easy to install. Have you tried bringing up your laptop's BIOS on startup? You can run CPU, hard-drive and RAM checks via there.