Swap Primary and Secondary Mouse Buttons

Left-handed users or those with different preferences can swap the primary click button. Many mice also have extra buttons that require vendor utilities to customize.

What you're changing: Which button performs the primary click and how additional buttons behave.

Windows & macOS

Windows

Open Settings → Bluetooth & devices → Mouse.
Choose Left or Right from Select your primary button.
Use manufacturer software (Logitech Options, Razer Synapse, etc.) to remap extra side buttons.

macOS

Open System Settings → Mouse.
Enable Secondary click and choose whether the left or right side triggers it.
macOS lacks native options for extra buttons; use the vendor tool or utilities like BetterTouchTool.

Tips & Troubleshooting

Dragging uses the primary button—remember after swapping.
Some applications detect raw button input and may ignore system settings.
Check for firmware updates if buttons misbehave.

References

Microsoft Support. "Change mouse settings" (select your primary button). support.microsoft.com
Apple Support. "Change mouse preferences on Mac" (secondary click). support.apple.com

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