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#71
You are good to go. You have no unallocated space until you delete the first partition which is your EFI system partition. The only concern is when you recreate the EFI System Partition with "create part EFI" in diskpart - you want it to be in the correct empty space, so you want the only empty space on the hard drive to be where the EFI System partition was before you deleted it. In my example, after you recreate the EFI System Partition and then do list part, I suspect your system partition will be partition number 1 and it should have the asterisk next to it. When you recreate the EFI system partition it will automatically get the focus for the next command formatting it.
Obviously, your first bcdboot command will need to have D:\Windows in it instead of my G:\Windows.
I ended up with a nice, pretty graphical boot menu with Windows 10 on top and the default after running the commands in the example.