Windows 10 often overwrites the Bamboo driver with a generic one.
If you cannot get touch gestures to work or need only pen functionality, consider (open source). It supports the CTH-670 without Wacom’s bloatware. bamboo cth-670 driver windows 10
Open "Wacom Preferences" from the Start menu to customize pressure sensitivity and touch gestures. Troubleshooting Tips "Driver Not Found": Windows 10 often overwrites the Bamboo driver with
If the Wacom Center says no device is connected, ensure you are using the older 5.3.5-3 driver; newer versions will not recognize the CTH-670. Touch Functionality: bamboo cth-670 driver windows 10
You can dual-boot, but losing Windows 10 security patches is too high a price for a tablet driver.
Reboot your computer to ensure all services are fully stopped.