If an app is on the start screen, I can right click it and choose "Uninstall" to uninstall it.
But if I have previously chosen "Unpin from Start" for an app, so that the app is no longer on the start screen, then how can I uninstall it?
Press Windows key, then search for the name of the app. When it pops up, you can right click on it and press
Then, same as in previous Windows, select any app you want to uninstall and click 'Uninstall/Change'.