Any success using Vagrant + Samba for Drupal Projects?
The git project Druphpet is doing exactly what you want to achieve.
https://github.com/alehkot/druphpet

It's using a Samba server under your guest(Ubuntu) accessible via Windows explorer: "\192.168.9.10\data"

For sure you Drupal website becomes really fast, because your webserver is accessing files locally(inside Linux)

The only problem with this approach is that every modifications of your Drupal code inside your Windows text editor (themes, custom module...) become slower because not local.

The other problem is that when the vm is off or crashed, you can't access your Drupal files anymore.