

Does it have the same problem? If not, there's likely a hardware issue.

You can also try connecting another mouse to your current PC.

If the mouse works perfectly on another computer, there's a software configuration issue with your current computer. If the problem is the same when the mouse is plugged into another computer, you know you have a hardware problem. If you have a wireless mouse, either plug its RF dongle into another computer or pair it via Bluetooth with another computer. There's an extremely easy way to check whether you have a hardware issue or a software issue: Unplug your mouse from your current computer, plug it into another computer, and test the left-click button.
