I have a new Macbook Pro on which I want to use also Windows 10. At first I installed Windows 10 using Boot Camp. This Window version works just fine. Then I decided that I to install Parallels Desktop 13 in order to switch easier between Mac and Windows. I succeeded to install it and My Boot Camp.pvm was created. But now, everytime that I start Windows under Parallels it required to add a license. I tried to use the license that came with the purchase of Windows 10, but then I get the prompt that this license is already installed on another machine. Anyone any clue how to solve this?