Gateway M Series won't fully boot

Zayah J. - Dec 13, 2015 at 01:23 PM
I've gotten a Gateway m Series laptop that was just collecting dust in my house and I used it perfectly until I accidentally used a 7Zip file and had "Use this for all files like this" then all my icons turned to 7Zip ones. By then it was obvious that I had to factory reset but when I attempted it just to gateway logo then booted a blank screen with a blinking cursor and goes no further, I tried using the F8 but it does nothing, I know the PhoenixBios password. When I try boot sequence there's no HDD option just "DVD], Boot Main, and Boot To LAN."
Please provide help you can.