Unable to launch the IIS Express Web server

Failed to register URL “http://localhost:63647” for site application. Error description: The process cannot access the file because it is being used by another process (0x80070020).

1. Open project properties.
2. Choose “Web” on the left hand side.
3. Update the port number in the project URL. Then click yes if you want to update the virtual directory.
VisualStudio_Project URL

4. Save and restart Visual studio, then you should be good to go! =)