But some are following instructions and still issues are arising
A minority in the grand scheme of things - so much different hardware and software configurations there's bound to be minor issues. You wont hear from the thousands who have successfully upgraded on here, only those who are having problems. Its not as bad as some are making out tbh.
Just checked to see my activation code on my desktop PC - getting back that OA3xOriginalProductKey error - even though its showing as activated!
Damn ISO download is only at 11% hurry up! lol