USB Device Not Recognised Pop-up

Having just solved this annoying "Feature" I thought I should pass it on as a Tip. Occasionally when woken from hibernation, the system will constantly stream a series of pop-ups that are perfect for annoying the user. They indicate the the USB Device is not recognised, even though no device is inserted in the USB slot. To cure this, follow this simple recipe... START Control Panel System Hardware Device Manager Universal Serial Bus Controllers Go to the bottom and start deleting the Root Hubs until you hear the chime indicating that a device has been disconnected. Et Voila!