When restarted my windows 7 x86 the below image appeared on bottom-right corner, saying "USB device not recognized", image 1. And in device manager there is yellow sign of that driver, image 2. There isn't any USB stick attached to this but whenever I restart the machine this message appears! I tried to use online updating the driver but it says best driver is already installed! I don't know how to get rid of this problem. Please help to solve it.