Megahertz said:
First copy the G:\user"Name" to C: (your files backup)

Make drive 1 boot able (G:).
Open a CMD window as administrator and type:
bcdboot g:\windows

Shut down, disconnect drive 0 (remove SATA or power cable), enter BIOS and select drive 1 as your first boot option.
See if it boots.
Given the disk layout shown in post #4, that should work.