RoboTask forum

What steps should I follow to set up a task that will close a program?
The window is not visible when minimized, making it impossible for me to target and close it.

Generally you can close the program when you close main window of the program.
Use Window Command action. It can process hidden windows too.

Another way - you can terminate process

While a script to force-close the program might seem like a solution, perhaps investigating why the window minimizes invisibly would be more beneficial long-term? It could be a software bug or a configuration issue. Fixing the root cause might prevent future problems and be a better approach than repeatedly ending the process. Something is making this not work as designed.