I have dell vostro 3460 .. I recently installed windows 10, latest validity sensor driver and digitalpersona..
it always says that the fingerprint reader is not connected , any help?
I had a similar problem with the Latitude E5540 laptop.
It turned out that windows did not have the complete drivers - see here:
I tried the solution on the post but the problem persists. Looks like the sensor on my Vostro 3560 has a different model number.