Visit the Windows Store and download the Xbox Insider Hub app Once that’s done, click to open the app and click to join the Xbox Insider program Once you’ve joined, click the open box icon on the left You should then see an open to join the Minecraft for Windows 10 beta, click that then click to join Select the option that says “Minecraft for Windows 10 RTX Beta” You then have the option to download Minecraft or have your current version updated