Copied Windows 7 disk (MBR to GPT) won't boot under UEFI
Used AOMEI Partition Assistant Pro 6.5 to "disk copy" (quickly) a 500GB MBR drive to a 5TB GPT drive. After the ~4-hour process in AOEMI's "Pre-OS installation" (whatever) mode, I set the BIOS boot mode from legacy/UEFI to just UEFI but under the UEFI boot order is just "Windows Boot Loader" (whatever) and "nothing" (whatever). On reboot, the stupid AOEMI pre-OS installer comes up again and tries to redo the disk copy, which I obviously don't want since it's SUPPOSED to be done. How do I get rid of the pre-OS installer?? I also tried doing a repair option from Windows 7 DVD but it doesn't recognize the hard drive (I forget the exact error but something about not recognizing hardware or something). Now what??
Also, this website is so slow!