I wrote up a quick how-to for a student of mine and thought it might be useful for other left handers out there.
Click the START button [circled in red] to display the Start Menu. On the Start Menu, click ‘Settings’[shown in green] :
With the Settings dialog box displayed, click ‘Devices’ [shown in green] :
With the Devices dialog box displayed, click ‘Mouse & touchpad’ [shown in green]:
With the ‘Mouse & touchpad’ dialog box displayed, click ‘Left’.
The option for ‘Right’ will now be displayed.
Click ‘Right’ as shown:
Left handers should now be able to mouse click using the index finger of their left hand and the right button of the mouse. 🙂