How to set my app so it can only run as administrator.

You can set the program so you can only run as administrator.

In Visual Studio:

Right click on the Project -> Properties -> Security -> Enable ClickOnce Security Settings

After you clicked it, a file will be created under the Project's properties folder called app.manifest once this is created, you can uncheck the Enable ClickOnce Security Settings option

Open that file and change this line :

to:

This will make the program require administrator privileges, and it will guarantee you have access to that folder.