Click start control panel administrative tools computer management device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X you will need to update/reinstall drivers right click to reinstall drivers if you can see your usb drive but its not working if you dont have a disk with the drivers you will need to download one try one of these http://download.cnet.com/usb2-0-driver-zip/3000-18493_4-163914.html http://download.cnet.com/usb-2-0-root/3000-18493_4-55793.html http://download.cnet.com/usb-mass-storage-controller/3000-18493_4-161651.html USB Mass Storage Controller http://download.cnet.com/via-usb-2-0/3000-2098_4-10163319.html Install a USB 2.0 host controller driver http://download.cnet.com/usb-mass-storage-controller/3000-18493_4-161651.html
ports (com&lpt) right click update driver
hope this helps
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