Thanks to the folks at pr1ntf.xyz, we can get Windows virtualized with bhyve on FreeBSD. Follow the link below for full instructions.
How I Learned to Stop Worrying and Love The Windows Operating System Family.
As I wrote about in the past, Windows support was coming to the FreeBSD hypervisor bhyve. Support officially came with FreeBSD 11.0-CURRENT r288524 when it was announced via the FreeBSD Virtualization mailing list. Shortly after, Windows Diplomat Michael Dexter wrote a great how-to on the FreeBSD Wiki to get Windows up and going under bhyve.
Full tutorial: http://pr1ntf.xyz/windowsunderbhyve.html