Use Facial Recognition to log on to your computer

Yes, it is possible and more importantly, free!  Try KeyLemon.  This clever biometric tool uses your webcam to scan your face each time you log into Windows.  Once you have been identified, you're logged straight into Windows without having to touch your keyboard.  The process is fast and completely automatic.  The software is incredibly simple to set up and use, and the free version of Keylemon has all the features you need to keep your data safe.  I owned the paid version and can verify that it works, very well.