New
#1
I knew it, they had to do something about new users, not everybody wants to upgrade and than to do clean install all over again. Many have old, screwed up 7 and 8.1 which make problems while upgrading and after upgrade. I suspect that's one of main reasons for problems. A clean install usually fixes that.
I'm hoping this works in boot camp as well, it should I think, I had a big blue with Microsoft over this, twice.
Ha, found a problem. In 10240 printer works and also worked on 10547 but now when trying to print I get "Printer is in error state". Changing driver didn't help.