After searching all over for a fix, I was unable to find anything that helped. So I waited patiently, and now it appears that Microsoft may have released a fix for the issue. I am running Windows 7 Professional (Build 7600) on an Asus C90S Laptop with an integrated biometrics scanner below the touch pad.
All I did was to temporarily turn on Windows Update and do a scan. Under the "Optional" updates section Windows should have detected an available update for the biometrics driver. At least there was for me, that's how I fixed it. I can't promise this will be available for everyone, but it worked for me.
Best of luck. Please feel free to respond with your own fixes if different from those already posted here.