Question 1

Driver install fails or rolls back?

Accepted Answer

Run the installer as administrator, temporarily disable antivirus, uninstall any previous TouchChip fingerprint driver, reboot, then reinstall the package matching your Windows version.

Question 2

Device not detected?

Accepted Answer

Try a different USB port/cable, check Device Manager for an unknown USB device, enable the Windows Biometric Service, and rescan for hardware changes.

Question 3

Version conflicts or Windows Hello stops working?

Accepted Answer

Remove old fingerprint software and driver entries in Device Manager, reboot, install the current manufacturer driver, then re-enroll fingerprints in Windows Hello.

TouchChip Fingerprint Reader Driver