Mouse double-clicking when you click once?

1. Collect an ordinary single-click sample

1. Open the Double Click Test and press Reset.
2. Keep the pointer inside the test area. Press the left button once, release it fully and wait about a second.
3. Repeat at least 10 times at a comfortable pace. This is a convenient sample, not a certified diagnostic threshold.
4. If you accidentally double-click, reset and repeat so you know which events were intentional.

Avoid speed-clicking for this check. The question is whether an ordinary isolated press appears to produce an unexpected additional event.

2. Read the two counters separately

Double Clicks counts sequences recognized by the browser as double clicks. Suspected duplicates uses a separate timing rule: successive left-button presses at least 2 milliseconds and less than 80 milliseconds apart. Deliberately fast clicking can trigger that rule.

No rapid duplicates in the sample means only that this rule did not flag the observed intervals. It cannot rule out all unintended duplicates or an intermittent problem. A warning is a reason to repeat and compare, not proof of switch failure.

3. Check software before blaming the switch

If the main symptom is that files open after one click, check the file manager’s single-click-to-open preference. Logitech documents this as one explanation for a mouse that appears to double-click from its first use.

Also inspect the button assignment in your mouse software: a single button can be assigned a double-click action or macro. Changing how an application interprets clicks is different from repairing extra physical signals.

Official guidance: Logitech: mouse double-clicks when clicked once · Logitech: button and key troubleshooting

4. Change one variable and repeat

1. Compare the same slow-click pattern in another application.
2. For a USB mouse or receiver, try a direct connection to the computer. For a wireless mouse, check its charge and connection.
3. Try a second mouse on the same computer, or the original mouse on another computer if available.

If the unwanted behavior follows the mouse across these checks, send the manufacturer the model, connection type and a concise description of the repeated symptom. Avoid disassembly or improvised liquids as a first step.

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