I had this issue this morning too right after my update. Called support and it's fixed! Here's what they had me do: 1- Shut down your computer (not restart) 2-Once its shut down, hold down the start button for 10 seconds. then lift your finger 3-wait a 20 seconds or so, and then turn on the computer as normal. 4-Log back in You should be able to login/add a fingerprint now! If not call support and they will help. Fixed mine!