If a program is running in the background on your Windows 11/10 PC & you can see it on Taskbar or Task Manager but is not visible on your desktop screen, see this post.

1] Check Task Manager for Startup entries Right-click on the taskbar, and select Task Manager Switch to the Startup Tab and locate the Program in the list Check if the status is disabled.

I've got a program that won't run, but it shows up in the task manager. The program in question is the Sony CONNECT Reader for their new eBook reader. The program worked when I first installed it ...