Still no reply from Canon to me.
On another note I had problems with my card readers, both internal and external, after upgrading to Win10. After six months of hair pulling I took it to a pro shop. After they tried for two full days, and failed, they came back to me and said that the problem was that Win10, when updated, or even booted, automatically replaced any drivers that it didn't think belonged there with the MS signed and approved driver that was already in Win10, from its first release. So, no matter how many times the shop put the correct driver in for those card readers Windows 10 replaced them each time it booted or updated with the one that didn't work.
I don't know if this has any bearing on all of our problems here, but maybe the do-nothings at Canon could look into that. I almost choked with laughter after I typed that line because it was such an oxymoron: Canon actually doing something to help their customers.
