Tried the new drivers, the new Toolbox files. Nada. MF Toolbox won't even install.
My last call to Canon resulted in the CSR swearing to me that if I only changed from a 6 foot to a 3 foot USB cable that everything would be fine. He told me it was all over their support logs that USB cables longer than 3 ft were what was causing the Win 10 problems. So I rearranged my entire setup to get a 3 foot cable. You'll never guess how well that worked....
This still remains a Cluster **** of really bad customer support.