I have a Win 7 and Win 8.1 dual UEFI boot on a GPT disk (Disk 0). I installed Windows XP on an MBR disk (Disk 2). When I try to add an XP boot entry with EasyBCD (running on the Win 7 install), I get an error that EasyBCD failed to detect a valid installation of Windows NT-2003 on all mounted...