Ask HN: Using Windows solely as a VM host

I run Linux. I despise Windows. It started many years ago, where mild irritation turned to frustration, then frustration to anger, and anger to resolve to never use it again if I could help it.

That said, I am now using a Dell 5520 with Thunderbolt dock. While Ubuntu runs flawlessly on the laptop itself, the dock and it rarely cooperate. Sometimes I can dock and undock with no problems, but 8 out of 10 times something goes wrong. I don't consider this Ubuntu's fault per se...I realize the challenge of supporting proprietary devices like this.

After tweaking various settings, I've hit the point where the situation is becoming unproductive. I'm now faced with a interesting, yet worrisome, potential resolution: using Windows as the host OS, and running Linux in a vm.

What's worrisome to me is that I don't like to have Windows on my hardware, not to mention my network. While I can harden a Linux system pretty well, I'm at a loss when running Windows. I've thought about trying something like Faronics Deep Freeze to lock Windows down, but I'm not sure if that's a feasible approach.

Surely other HN'ers have been in this situation? What do you recommend?

(tl;dr: I don't like Windows, but wish to use it as a VM host for it's device support. How can/should I lock it down?)