Hello, I'm trying to install via unattend.xml a win7 x64 version on a machine with a gigabyte motherboard. I'm wanting to use gpt partitions and do the install in uefi mode not bios. I've set up in my unattend partitions efi and msr as well as my primary ntfs partition for the install. I'm getting an error from win7 setup that the disk can not be installed in gpt mode. I'm speculating this is because the setup was started in bios not uefi mode. This is a new board and I'm wondering if anyone has had this and has a fix? To get the setup I have in bios boot order CD/DVD is second on the list, and I press c to boot from CD. Thanks. Dave.