This often happens if you plug the tablet in before the driver is fully installed. Try a different USB port or repeat the clean uninstall/reinstall process.
By the time Windows 11 launched, Wacom had officially ceased support for the CTH-470. The Official Wacom Driver Site would often recommend upgrading to a newer Intuos model instead. When users tried to install the latest drivers, they often saw an error: "A supported tablet was not found on the system" . The "Ghost" Driver Strategy wacom bamboo cth-470 driver windows 11