[. . . ] [. . . ] Here you have to go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\ENUM\PCI: Click with the right mouse button on "PCI" and select in the context menu "Permissions. . . ". Mark the entry "SYSTEM" and make sure that the in frame "Permissions for SYSTEM" the options "Full Control" and "Read" are both set at "Allow". Now click on the button , , Advanced" and in the window "Advanced Security settings for PCI" you have to make sure that the option "Inherit from parent the permission entries that apply to child objects. . . "is NOT marked. Here the option "Replace permission entries on all child objects. . . " should be selected: Click on OK and close the registry editor. Now open the device manager (control panel > system > hardware > device manager) and install the drivers for the PCI device. Please note that you do the changes in the Registry on your own risk ! [. . . ] [. . . ]