Well the new "Creators" edition of Win 10 (version 1703) installed itself on my machine last evening. It blew off all my saved passwords. It also rendered the scanner functions on my Canon multifunction machine inoperative. Apparently you need to re-install the Canon patch from last October every time Windows undergoes a "major" upgrade. I had the patch saved so I just re-installed it and restarted Win 10. Scanner works again. See https://www.usa.canon.com/internet/portal/us/home/support/details/copiers-mfps-fax-machines/support-multifunction-copiers/imageclass/imageclass-d1120?tab=drivers&downloads for the patch for my machine.