Secure boot could only be use for pure UEFI mode so that means if you want to use this function then you will need to enable the Windows 8 feature,
For your VGA, you either check with your vendor if they got UEFI VGA bios for you to update or you will ...
For your VGA, you either check with your vendor if they got UEFI VGA bios for you to update or you will ...