Check in the Windows Control panel under programs to see if it's listed there. IF it is, use the remove feature there to uninstall the drivers. You might check in the recent driver installer from the main web site and see if it has a uninstaller program and run it from there. This should clean out all drivers. Then reboot and run the installer again to re-install the drivers. Just remember to install with the adapter disconnected until it tells you to plug it in.