Ok, I didn't come here to be questioned, I came here for help. What happened was I was working on a project for school and I downloaded a template off of the internet for Microsoft Excel 2004. After downloading, my computer froze, I restarted, and got the white screen with the folder/question mark. I restarted and I just kept getting a blank screen. I searched google, and it said that it meant it was hacked. I then proceeded to call applecare and they said that my computer had been hacked by someone and I have lost everything on my hard drive and that I need to get to the genius bar as soon as I can. I'm not out to lie to you guys or whatever, I was trying to get help. And why do people say avoid Norton? What should I use then?
EDIT: I'm also currently on my University network using an ethernet, so i don't know if it was through that or when I downloaded the file. But either way it happened.