The process of downloading the Dell OptiPlex 980 NVIDIA NVS 420 Graphics Driver 8.16.11.9175 for Vista64/Windows 7 x64 driver should begin automatically after a few seconds. If this does not occur, click on one of the links below (we recommend downloading the Dell OptiPlex 980 NVIDIA NVS 420 Graphics Driver 8.16.11.9175 for Vista64/Windows 7 x64 driver from the primary server - this is the manufacturer’s Nvidia official website). If the download still fails to run, check whether your anti-virus software is not blocking the connection to the manufacturer server of the Dell OptiPlex 980 NVIDIA NVS 420 Graphics Driver 8.16.11.9175 for Vista64/Windows 7 x64 diver.