My legacy MVC and WebForms samples are inaccessible. What could the issue be?

Question

My legacy MVC and WebForms samples are inaccessible. What could the issue be?

Answer

This indicates an issue related to the IIS configuration.

To fix this, verify that the dependencies (IIS, ASP.NET 4.5, and .NET Extensibility 4.5) have been installed.

If the issue persists, reinstall the client to have the installer perform the auto-configuration of the IIS Websites.