Oh that's fair, if a product is unsupported, use it air-gapped or at least in a reasonably controlled environment...
Again, pretending and forcing upgrades is not the solution. The practise perpetrated by Microsoft has been described again and again as an "aggressive effort to push upgrades". https://www.theguardian.com/technology/2016/mar/15/windows-1...
The issue is not the upgrade per se, but the "imperfection" of the upgrade process (wanted euphemism) and the fact that many consider W10 a worse os if compared to W7.
Otherwise nobody would complain.