I am trying to install Windows 7 x64 SP1 on a UEFI enabled Dell 6430 laptop (yes, I know I can set legacy options, but I specifically need a UEFI image for capture) and the installation disc stops at the Starting Windows screen.  I have used a standard Windows 7 x64 SP1 Enterprise disc, the Dell installation disc it came with, and a custom-built WinPE 3.1 preloaded with hard drive drivers and none will boot past this point.  If I use a Windows 8 disc or a WinPE 4 environment it makes it just fine.  This is not specific to this machine, all of this model are doing this as well as several other models.  What am I missing to make this work?  Thank you for any help.