Load drivers as Admin with elevated privileges [follow these steps]
Make Sure your offline & shutdown ALL background software - including Security
After you Update driver in Win 7 shut down the PC
Remove power from the wall (All items: printer, monitor, USB hub .....)
Hold start Button in for 20 sec - now all capacitors are discharged
Plug everything back in & Boot
Enter Windows, if everything looks OK, shut down again
Reboot, make sure Security software is working --> Now you can go online again