I upgraded from 7 to 10 to give it a whirl, then rolled back after making a windows 10 ISO image, i then installed using the windows 10 ISO image to see if it was better for me, it wasn't so I formatted my HD and put a windows 7 image back on.
I wonder how Microsoft will deal with this as I had a clean install of windows 10 on (you cant roll back clearly as there are no windows 7 files on there) does this mean that as I clean installed Windows 10 that my old Windows 7 code could become inactive ?
I'm suspecting to be safe it may be better for me to upgrade windows 7 (in place) then roll back again ?? .. then put my Windows 7 image back on ?
I wish Microsoft would be absolutely clear about this !