I assume you are running windows operating system. You need to uninstall all your usb devices. Go to computer manager/device manager and select all USB devices and unistall them. Go to the start menu, click on run type compmgmt.msc. Find all your USB devices on the right side. Follow the instructions for each device to uninstall them by double clicking and then select uninstall. once you uninstall, click on the icon to scan for hardware changes located on the sub menu. Your operating system should recognize new hardware or reboot and the operating system should install them automatically ageain. Try this, I hope it helps.
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