Try creating a shortcut to the .exe that starts up the program, now right click the shortcut, choose Properties, and see if it gives you a tab to change it to run in a window instead of fullscreen. There could be a down arrow choice rather than a tab.
Some programs will give you these options...some won't.
I'm talking about programs that force you to run in a fullscreen mode. How can I run these programs in a window when they have no option to let me? Thank you.