Visual Studio 2012 automatically opens specific files on start

Question

There are about 6 files that are automatically opened every time I launch Visual Studio 2012, even though they are already closed by me in the previous session. How can I make it so that those files no longer automatically open upon each launch, so I no longer have to manually close them?

Answer 1

Open documents and similar user options are stored in a .suo file in the same directory with your .sln file. If your specific .suo file became corrupted, you can try to manually delete it.

Answer 2

Just make sure close your files and "save your project" again. This should fix it.