What are you booting to in order to restore the image? If you are not aware, the Install DVD has an image for MBR or UEFI. You probably need to select the UEFI version in a boot menu.
But a UEFI enabled system can install Windows 7 as either UEFI or MBR, depending on how your boot the install media.
Edit: I should add, if you are trying to use a Flash drive, there are certain extra procedures to make it useable as UEFI, and the Microsoft bootable flash drive maker does not work for UEFI.