Win8 the newly added USB device is not recognized

Failure phenomenon:

Win8 the use of wireless devices (wireless mouse, wireless keyboard, other wireless devices, etc.), the device can not be properly identified after plugging in the Device Manager unknown Device, unrecognized USB devices, drivers can not be installed properly.

Reason Analysis:

The problem is usually a device failure, USB interface, or system Plug and Play service is turned off.

Solution:

Open Control Panel--management tools--services--you only need to turn on the Plug and play service (so that your computer recognizes and adapts to hardware changes with minimal or no user input). Terminating or disabling this service can cause system instability. If it is turned on by default, please disable it and reopen it.

Then Device Manager--Uninstall the unknown device device, unplug the wireless device, reboot the computer, plug in the wireless device, install the driver, it's OK.

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