FWIW, Run As Administrator resolved the problem I had with Epson Scan. After scanning or when closing it would spawn some window repeatedly without end until I did an End Task on it. I edited the shortcut in
C:\Users\Toby\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar
to set the Run as administrator property (Shortcut tab, Advanced...) on the shortcut to save me the trouble of right-clicking.
When I first tried setting the property, Windows created a 2nd shortcut named Epson Scan (2) - don't know why. I deleted both, created a new one (start -> search for "Epson Scan", right-click, Pin to taskbar), then went to the folder and right-clicked on the shortcut to set the property.
Toby