The driver isn't just a .sys or .dll . It’s a complete package defined in an INF file, typically:
Must have a specialized illuminated infrared sensor to distinguish between a live face and a photograph. windows hello face software driver
If the "Facial Recognition" option is missing or not working, you may need to manually add the optional feature: Optional features View features and search for "Windows Hello Face" and restart your computer. 3. Managing Drivers in Device Manager The driver isn't just a
Windows sometimes turns off the IR camera to save battery, which unloads the driver. which unloads the driver.