Any insight into whether we can either:
a) download the Windows 10 upgrade for free (yes, have W7) and then not install it in the 1st free year, but have it available, sitting, and ready to install in 2017 or later
b) upgrade from W7 to W10 after July 29th and then go back to 7 and still retain the option to go back to W10 in a year or 2?
The idea being to stick with a very solid W7 until its end of life, but have W10 for free still, without having to pay for 15 PC's at Pro level in 2020 or earlier
And that said, do I have to download it 15 times for each PC via Updates, or download it once on 1 machine and copy install file to the other PC's