Windows requires a digitally signed driver is an error message that appears because of some security measures introduced by Microsoft for Windows 7 and Vista. According to these, all drivers and system files must be digitally verified or they cannot run. There are some computer settings you can change, in order to avoid this kind of conflict. These adjustments can be performed either manually(which is not so recommended, because it can produce an irreversible damage to your computer) or by using a specialized application, such as Driver Signature Enforcement Overrider, that is able to push your software behind Microsoft's security measures. For more information, go to its homepage http://www.ngohq.com/home.php?page=dseo
