Hi, there's a commandline utility for the Devicemanager to change the drivers. the utility is called devcon. See for more informations: http://www.robvanderwoude.com/index.html or to download the utility: http://support.microsoft.com/default.aspx?...b;EN-US;Q311272 on this page there is also a description from microsoft I think this could solve your problems. morethanbytes