There are multiple reasons why the Legacy Boot is greyed out in your system BIOS. The following suggestions will help you fix the problem. Before you proceed, if you are using Intel NUC products, you ...

Asus released an executable file to upgrade your vbios in Asus GTX 680 models so that it will enable the card to use Windows 8’s Fast boot option, provided its installed on an Asus UEFI motherboard ...