I have no experience with UEFI bios. I have ordered a Gigabyte B75M-D3H and I want to install Win 8. I have read that the B75M-D3H UEFI is similar to the one used by most other Gigabyte boards. Could you help me understand what are the boot options offered by UEFI? What UEFI settings should I use to install Win 8? Is there an option that lets you choose between UEFI boot mode and Legacy boot mode? Do I have to load some special file? I have read some posts where people talk about an *.efi file, others where people talk about an *x64.efi file. I have no idea what these are all about.