Best for intranet applications where users are verified via their Windows machine credentials on a local domain.
When you first create a project in Visual Studio, you are typically presented with three primary options:
Uses ASP.NET Identity to manage local user registration (usernames/passwords) or social logins like Google and Facebook. asp.net-mvc-change-authentication-type
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.
A clean slate for custom-built security logic. 2. Transitioning from Individual Identity to Windows Auth Best for intranet applications where users are verified
Whether you are pivoting from a public-facing app to an internal tool or modernizing an older codebase, changing your authentication type is a multi-step process that involves more than just a Web.config edit. 1. Understand the Core Options
Here is a blog post guide on how to navigate this transition effectively. How to Change Authentication Type in ASP.NET MVC A clean slate for custom-built security logic
This is a common scenario when a pilot project needs to be brought "in-house."