The process of downloading the Dell Latitude D820 Diagnostics Utility Partition Contents Upgrade Tool A1266 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 Latitude D820 Diagnostics Utility Partition Contents Upgrade Tool A1266 driver from the primary server - this is the manufacturer’s Others 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 Latitude D820 Diagnostics Utility Partition Contents Upgrade Tool A1266 diver.