I cannot get it to work!

[Braden'sPC's]

When I try and create a Windows To Go Drive, I cannot ever select the system and boot partitions. It selects them for me and it's locked so that I cannot change it. I have tried MBR for BIOS, GPT for UEFI, and MBR for BIOS and UEFI. Nothing works. And the resulting drive is never bootable. What the heck?