Well, its fine, i call phone for windows activation, then Window is activated successfully, and I restart Win 10 and change to Mac OS. The problem is coming: 1) When I open Win 10, it display me Windows is not activated. Then, reinstall the program and check if the issue is gone. After done installation, I create a Parallels Desktop for Bootcamp, both Win 10 had been activated (2 different keys). It is common however for the Virtual Machine to then have an issue shutting down, where it continuously restarts. If the full-screen problem persists, uninstall Parallels and restart your Mac.
This document details how to fix the common issue where a Parallels Virtual Machine is stuck on a black screen. Windows is not included with your purchase of Parallels Desktop 10 for Mac.