Everything was working fine until I tried to print something. I got a message that the device (printer) was not recognized and to click on the balloon. The I got the message that none of my USB ports were recognized. How can this just all-of-a-sudden happen? I tried uninstalling and reinstalling my printer but the problem seems to be with the USB ports themselves. When I check in Device Manager I am told that all the ports are working properly. However, none of the ports are recognized and just a couple of days ago, everything worked fine. I have no idea of what to do and any help will be greatly appreciated!