If you still have your original installation CD, follow this process. If not, you may need to locate the "CardScan 8.x Software Archive" from legacy driver repositories (use at your own risk).

Since the 600cx is no longer actively supported with public downloads on most mainstream sites, you must often source the driver directly or through legacy support channels: Contact DYMO Support

: Do not plug the scanner into the computer until after the driver software has been installed . Plugging it in too early can cause the Windows default installer to fail or block the correct driver from installing properly .