How to use Fingerprint on Lenovo Carbon X1 20BT

Yes first line.

It appears that is like a power on password. (or a BIOS password)

Not sure how but it then could likely block access to the device by windows.

Before doing.... Do you have a power on password or a hardware password. My understanding is you don't use the fingerprint scanner at all, correct?

Actually I would like you to take a picture like you did but this time let us see what the description says on right, like second screen shot.

Please post a picture showing the description of Predesktop Authentication.

Crap.... wish they explained predesktop.

Yes please disable predesktop and Internal only.

then boot into windows and see if device is showing under Biometric

I wish every vendor would publish the BIOS in a manual.

So the device is still not enable. Lets return the bios to the way you found it Enabled.

You showed us the security tab. Can you provide a screen shot of the major headings for the other tabs.

Thanks

At this point I will "de-lurk" to observe that it's looking like a hardware or connection problem with the fingerprint reader itself. Is the laptop still under warranty? If so you may qualify for free repair/replacement.
Just a thought...
HTH,
--Ed--