How to, in Windows 10, uninstall Unity Web Player

I am trying to completely uninstall all Unity components from a Windows 10 machine. I cannot seem to uninstall the Unity Web Player.

I understand that the procedure is to close all browsers, and open the Apps & Features section of the Control Panel, locate Unity Web Player and click “Uninstall.” This brings up a dialog to confirm uninstallation. However, when I do so confirm, nothing happens.

Please advise.

Reinstall Unity, then uninstall it again, then follow the procedure above.