This is a weird one I can't figure out and it is bothering me.
I have a Dell Latitude E5540 with a fingerprint reader that I upgraded to Windows 10. Several months ago, after one of the Windows 10 updates (but I don't recall exactly which one) the fingerprint reader stopped working. I uninstalled and reinstalled the drivers for it and it started working. Since then I've determined that whenever I shutdown or the computer goes to sleep the drivers have to be reinstalled. Once I do that the reader works just fine until the next shutdown or sleep.
So every morning I start up the device manager, go to Biometric devices, and uninstall Synaptics FP Sensors (WDF) (PID=003f) and check off "delete the driver software for this device". I then scan for new hardware and it reinstalls and the reader works until sleep/shutdown.
I've tried searching the web for different drivers, downloading from the Dell website, and countless other things I can't recall. It's just really weird to me that it will work just fine until a sleep or shutdown. It seems like the system forgets it is there.
Anybody ever see that or have any ideas?