f you boot a "physical Windows" as a VM it will detect radically changed hardware and require a re-activation.
Unless you use a Windows-version that has a corporate license this will cause way more problems than it is worth.
Windows 2003 is as far as I know the last version where a Dualboot-configuration was manageable.
Generally speaking you also should avoid:- snapshots of "physical disks"
- suspend the host or guest if "physical disks" are involved
- mount a NTFS filesystem from Linux while it is also use from a Windows VM
I see, yes this makes sense.
I tried it with success by using my disk as immutable before i even powered it on, just to see if I could boot....and it worked. Performance was not what I needed for CAD, so I opted to keep the dial boot going.