Click the target below at your normal speed, the way you would in everyday use.
Keep going until the progress bar reaches 20 clicks.
Read the phantom count and the last interval, then check the verdict below.
A second press within 80 ms of the previous press, or within 30 ms of the previous release, is faster than a hand can click and is counted as a phantom double click.
A second press within 80 ms of the previous press, or within 30 ms of the previous release, is faster than a hand can click and is counted as a phantom double click.
How many clicks should I test?
Click the target at least 20 times, at your normal clicking speed. Fewer than 10 clicks are not enough to tell a real fault from a fluke.
What causes a mouse to double-click by itself?
Almost always a worn-out micro-switch. The metal contact inside starts to bounce as it wears, registering two presses for one click. It gets worse over time and cannot be fixed by software alone.
Can this be fixed without buying a new mouse?
Sometimes. A firmware-level debounce delay, a driver setting, or replacing just the switch can help. See the fix guide for the options in order of effort.
Does clicking with the keyboard count?
Pressing Space or Enter on the click target still adds to your 20-click count, but keyboard input never reaches the mouse switch, so it is never counted toward the phantom check.
Updated 2026-09-23 · How we test · Category: Mouse & keyboard