A: The reasons are as follows
1: Try to reinsert it.
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2: The mouse itself has a problem, the contact between the parts is poor, it is recommended to change the mouse to try, if the problem is solved, it is the mouse problem.
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3: Whether the USB interface is loose or the USB interface has a problem, poor contact, change the interface to see.
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4: There is a problem with the mouse driver, you can download the software such as the driver wizard and install the corresponding driver.