Switching authentication types in an existing ASP.NET MVC project is a common task when moving from a public internet model (Individual User Accounts) to a private corporate model (Windows Authentication), or vice versa.
This is a common scenario when a pilot project needs to be brought "in-house." asp.net-mvc-change-authentication-type
In Visual Studio, select your project and press F4 to open the Properties window. Disable Anonymous Authentication. Enable Windows Authentication. Switching authentication types in an existing ASP
Uses ASP.NET Identity to manage local user registration (usernames/passwords) or social logins like Google and Facebook. asp.net-mvc-change-authentication-type