I'm on Ubuntu 14.04 and I am using an HP Pavilion Notebook PC. I downloaded Ubuntu by booting from USB and replaced Vista with Ubuntu. I found out about Playonlinux but I was just left unsatisfied by it's performance. I have decided to do a factory reset and use Vista (factory OS) as my gaming platform and Ubuntu as the platform for everything else.
The problem is that when I boot, I press F11 (the key for recovery) and nothing at all happens. It works for the other keys like F9 (BIOS) and F10 (other settings), but not on F11. It then goes straight to grub.
I would like to go back to my factory settings, any help would be highly appreciated.