When you join the Windows Insider program to register your Microsoft Account (MSA) or your Azure Active Directory (AAD) account with the program, you will receive emails from the Windows Insider Program with updates and information about the program. You will also be able to set Windows 10 to start getting Insider Preview builds to get all the new features that are on the way and help Microsoft make Windows 10 even better.
This tutorial will show you how to join the Windows Insider Program to register your Microsoft Account (MSA) or Azure Active Directory (AAD) account to the program.