So I got my Origin PC Millennium recently. They also gave me a Windows 7 DVD (ORIGIN PC Edition) which has all the modified logon backgrounds and such relevant to Origin PC The problem is, now I want to make a clean installation in UEFI mode but when inserting the disc, the BIOS on my ASUS X-99 Deluxe motherboard only gives me the normal boot option not the UEFI option. If I insert my origin Windows 7 Pro disc that I had bought in the past, I do get the UEFI boot option. So as a workaround I though ok let me extract the image of that ORIGIN PC Windows 7 Disc and copy it to a USB using Rufus. In RUFUS I ensured to make it UEFI bootable for GPT partitions but when I boot off it and manually guide it to where the driver for my Intel 750 PCIe SSD is located and initialize the partition as a GPT partition, I get a message saying that I cannot install it on this partition because it is not bootable make sure the controller is enabled in the BIOS So I guess that ISO is missing part of the UEFI boot or something? If I boot off that DVD in normal mode (not UEFI) I am able to install provided that I initialize the disc as MBR but that's not what I want, I want to install it in UEFI mode / GPT partition the same way they shipped the PC to me. How in the world were they able to install in UEFI mode / GPT partition from that disc? any ideas? Is there a way to make that ISO that I extracted properly UEFI bootable?