If you cannot resolve the issue thru Device Manager try
Shut down the system
unplug the computer
remove the card from the computer
plug the computer in and restart the system
check thru Device Manager to make sure that the card is not liste
shut system down
unplug the computer
re-install the card
plug the computer in and start the system
Window should find new hardware and install the drivers for it or you can open Control Panel-Install New Hardware and follow the directions. Good Luck