Even something as simple as mouse button can fail. If your mouse’s left-click button is sticking, isn’t consistently responding, or is accidentally double-clicking, this often indicates a hardware problem with the mouse. It could be a software issue, however.
It’s Probably a Hardware Problem; Here’s How to Check
In our experience, most mouse left-click (or right-click) issues point to hardware failure. If the mouse’s left-click button doesn’t work, only sometimes responds, accidentally “unclicks” as you drag, misclicks, or double-clicks when you click once, that’s a pretty good sign there’s something wrong with the hardware in the left-click button itself.
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. If you have a wireless mouse, either plug its RF dongle into another computer or pair it via Bluetooth with another computer.
If the problem is the same when the mouse is plugged into another computer, you know you have a hardware problem. If the mouse works perfectly on another computer, there’s a software configuration issue with your current computer.
You can also try connecting another mouse to your current PC. Does it have the same problem? If not, there’s likely a hardware issue. If both mice have the same strange left-click issues, there’s definitely a software issue with your PC.
There could also be a problem with a USB port on your system—if it’s a wired mouse, try plugging your mouse into another USB port. If you have a wireless mouse with a USB dongle, move the dongle to another USB port.
Keep in mind that some problems can be spotty or intermittent, especially if the hardware is just starting to fail. The mouse button may work great much of the time and only fail sometimes. Use the mouse with another PC for long enough to confirm that it’s working correctly.
How to Fix a Broken Mouse Button
All mouse buttons will eventually fail if you use them enough. Mouse buttons are rated for a certain number of clicks. For example, the latest version of Razer’s popular DeathAdder Elite gaming mouse is rated for “up to 50 million clicks.” A cheaper mouse may be rated for many fewer clicks. After that, the physical mechanism in the mouse button wears down, and it stops working correctly.
If your mouse is still in warranty, we recommend you contact the manufacturer and take advantage of it. The company should repair the mouse for you—or, more likely, send you a new one.
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Source : Mouse Left-Click Button Not Working? Here’s How to Fix It
