Dell e7250 Fingerprint Reader Issue - Win10

Hi

Has anyone got the fingerprint reader working on the Dell e7250 with Windows 10 ?

I have download just about every driver Dell has to offer with no success - in Control Vault I have a yellow warning triangle and (code 10).

Is there any switch in the BIOS that needs to be activated? the laptop has had a clean install of Windows 10

Also in the device driver there is no reference to any Broadcom hardware.

thanks for any help

Alex