I found & secussfully used a cool program called go figure WinClone LINK to backup my Bootcamp partition to an image and re-image it into place on my new computer. I was migrating my accounts from one computer to another & I released I had no way of backing up my MS partition. In comes WinClone which works great! I just placed the old computer in “Target” firewire mode & copied out the M$ partition to a disk image on my new computer. Then partitioned and re-imaged the M$ Bootcamp on the new system.
Took 20 min tops.