Generic keys are provided by Microsoft to allow users to install the operating system and choose the version they want. While they allow you to Windows, they do not provide a permanent license or "activate" the software indefinitely. Common Generic Key for Windows 10 Home: YTMG3-N6DKC-DKB77-7M9GH-8HVX7 TX9XD-98N7V-6WMQ6-BX7FG-H8Q99