(A large portion of my issue and what led up to it resides here
I know barely anything about boot managers and whatnot. This is a part of a long series regarding other problems I've had that I posted previously here a while ago, but no one seemed to know anything about it (although the above link is to another forum).
Well I had gotten past that original problem by forcing the "UEFI DVD drive" to be booted instead of the "BIOS DVD drive" version, as I have the option to pick either type (as to utilize a GPT format instead of an MBR format, I do have a UEFI motherboard by the way). As I try to install Win7 x64, it creates the GPT disk and MSR and EFI partitions correctly, but when the setup restarts for the first time, inbetween the "Installing Updates" phase and "Completing Installation" phase, it gives me this error:
Windows could not finish configuring the system. To attempt to resume configuration, restart the computer.
I tried to manually create the GPT disk and EFI, MSR and primary partitions but no change. I tried different permutations of boot orders and nothing changed. Now, I can successfully install Win7 via the "BIOS DVD drive" and use a MBR style disk instead, and it installs fine. The only caveat is I can only boot up Windows in MBR format if I have the installation disc in the DVD drive, which is silly, and refuse to settle for.
Any more information you need please ask, I've been trying to fix my computer for days now and I need help, psychological and otherwise. Thanks ahead of time.