I have the same problem in my homelab: Host: Windows 10 Pro
Hyper-V VMs: Ubuntu Server 16.04.2 with latest updates, one vm is clean and rest have only one service installed (perforce server, plex server, etc.).
Test kernel df0a1b9cce531e1718dbb966b1e0075b3667598f booted up without errors.
I have the same problem in my homelab:
Host:
Windows 10 Pro
Hyper-V VMs:
Ubuntu Server 16.04.2 with latest updates, one vm is clean and rest have only one service installed (perforce server, plex server, etc.).
Test kernel df0a1b9cce531e1 718dbb966b1e007 5b3667598f booted up without errors.