Test your right mouse button
This test counts only presses of the right mouse button. Left clicks are ignored, and the browser's context menu is turned off inside the box so it doesn't get in the way. It's useful for games that use the right button for blocking, aiming or placing, and for checking that the button still works.
Is my right button broken?
Right-click slowly ten times and check that the score reads exactly 10. If it reads more, the switch may be double-clicking, which is a common fault on worn mice. If it reads less, some presses aren't registering. Try a different USB port or check for driver updates before replacing the mouse.
Using a touchpad or Mac?
On a trackpad, a two-finger click or tap counts as a right click. On a Mac with a single-button mouse, hold Control while clicking. On phones and tablets, every tap counts, because touchscreens have no right button.