Written by Barry Dysert (last updated February 3, 2020)
A sizeable number of computer users are left-handed. So, it only makes sense that Microsoft would equip Windows with the capability of supporting them with a "left-handed mouse." Of course, the mouse isn't left-handed, but you can configure it so that the primary button (typically the left one) is switched with the secondary button (typically the right one).
To switch your mouse for left-handed users, display the Control Panel and click the Hardware and Sound option. In the resulting page, click the Mouse link, which is under the Devices and Printers heading. Windows displays the Mouse Properties dialog box, and you should make sure the Buttons tab is visible. (See Figure 1.)
Figure 1. The Buttons tab of the Mouse Properties dialog box.
To switch how the buttons behave (so that left-handed users are more comfortable), make sure the Switch Primary and Secondary Buttons check box is selected. Click OK and the change is immediately made.
This tip (11549) applies to Windows 7, 8, and 10.
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