OK - Here is the answer, lol, I know sounds arrogant, but I just did this. I have also had to do this for windows 8.1.
Step one - download the icloud control panel (do not install yet)
Step two - Run the installer as an administrator by right clicking the installer and running as administrator
Step three - after the install finishes, DO NOT reboot
Step four - run the apple software update program and install iTunes from there.
Step five - Reboot, and enjoy
they key to this method working is the fact that when the iTunes installer runs it never installs "Apple Application Support". this also affects the ability for iTunes to load drivers, if somehow the iTunes installer actually "works".