Samsung notebook Q470 Connection USB device is not working properly, how to solve

1. Right-click Computer to select the administration option.

2. Select the Universal serial Bus controller under Device Manager options.

3.after single hit, check for faultyUSBdevice options, right-click the option, and choose Uninstall. (If you cannot determine which is the faultUSBinterface, can perform all uninstall operations)

4. After all uninstall is complete, you can click "Scan for hardware changes" in the Computer Management interface toolbar or restart your computer to detect and load the latest version of the driver.