my laptop is not connected to any usb device and it always display usb device not recognized which those not allow any usb device connected to it to work. I have tried formatting the system but still the same thing. can someone help?
Try updating the drivers on the usb ports in the device manager - just right click on the one with the exclamation mark on it and select: update driver software > Search automatically for updated driver software
Try updating the drivers on the usb ports in the device manager - just right click on the one with the exclamation mark on it and select: update driver software > Search automatically for updated driver software