Visual Studio ASP.Net MVC undo set as start page action

I have an web application that I'm working on, it was working fine until my curiosity got the better of me and I right-clicked on a view and chose Set As Start Page option. Now, whenever I run my application it takes me to the Resource Not Found error page. I have the default register route set in my Global config route which was working fine before. I notice that the URL now reads:

http://localhost:1234/Views/User/Login.aspx

instead of

http://localhost:1234/

like it was before. I'm not sure how to undo this action or what was changed, I've looked in my web.config file but I'm not sure what to look for exactly, Help is appreciated.

You can set it in the Specific Page option in the project properties, just leave the text box empty.

Right click your project in Visual Studio -> Properties -> Web (left hand tab) -> Specific Page with an empty string as the name.