The Minecraft with RTX Windows 10 beta is only available on Windows 10. It is not available on Xbox One. Before you decide to participate in the Minecraft with RTX Beta, please remember that: You must have a ray tracing capable GPU to experience ray tracing features and content, for example, a GeForce RTX 2060 GPU or better.
The second is harder but not extremely difficult. You're going to put the Windows 8 beta on a disc or thumb drive. From the same Windows site, click the ISO link here and fill in your information. The Minecraft with RTX Beta Is Out Now! Before we proceed further, there are a couple of things to note if you’ve played Minecraft Bedrock on Windows 10 before now:. Any world you open while participating in the Minecraft with RTX Beta will not be available to be opened in other Minecraft for Windows 10 betas on the Insider program, the full non-beta version of Minecraft with RTX that’s launching at a later date, or the Java Microsoft Windows | Operating System Beta, etc. Wiki | Fandom
Windows Insider
Customizing the look and feel of Windows is a cinch with themes—problem is, Microsoft generally offers so few supported themes. That's changed in Windows 7 Beta: Microsoft is already offering 20
Jan 28, 2015
Minecraft windows 10 edition stuck in beta - Microsoft® Oct 23, 2018 Beta testing and targeted distribution - UWP applications