If you depress the button slowly and deliberately and the issue goes away, it’s probably contact bounce. You press the mouse button once, but inside the microswitch, the contacts bounce and register more than one click, generally more rapidly than a human would ever register them intentionally. There’s an option in the mouse settings somewhere to “detect accidental double clicks.” I can’t remember exactly where it is, as my memory of Windows stuff is fading, but it’s a means of compensating for contact bounce in the microswitches inside the mouse.Ĭontact bounce is inherent within all microswitches, and it is the job of the firmware of a given device to filter that out and deliver accurate click events, but if it was not well done, or if the switch characteristics have changed, perhaps by a bit of corrosion, they may no longer work.
