All right here's the problem. I had linux mint installed on my samsung np300e5x and I was trying to reinstall windows, but i was getting only some grub options, none of which was allowing me to boot windows or any other cd/usb image or even enter into my bios settings. So i deleted the grub partition and all the others and on the next reboot i got only boot menu/app menu screen with linux mint option and couldn't boot not even in linux. I tried resetting the cmos and the only thing that changed was that now I'm only getting a blank boot menu / app menu screen and nothing else. No bios, no linux... i tried pressing every possible key and the only thing that works is the escape key which resets the system... Help?