Just got Visual Studio Express 2012 for Windows Desktop and finding myself overly annoyed that the Solution Explorer doesn\'t accurately reflect the state of my project. I k
There is a refresh icon option in the top row of solution explorer.
There's a "show all files" button in the top row of Solution Explorer. Click that and you should see your missing files/folders. Right click and choose "Include in Project".
Choose the project where you deleted the file and than click on show all files
Now you will get excluded/Removed files
Right Click > include in project.