Interesting issue activating Windows 10 on the virtual machine in Parallels and also on bootcamp - resolved by using MS telephone activation service - inputting blocks of numbers - tedious but works giving 2 activations in effect. So far with my limited needs, my new Macbook Pro retina 15' (see earlier post for spec) works flawlessly under Windows 10 Pro with both Parallels 11 and Revit 2017 and 3dsMax 2017, and also on bootcamp. Frame is currently offering a free trial of Revit on its cloud platform. It should make it possible to run Revit on a Mac or Chromebook and have.
