Reply to "Windows 10 Upgrade - Freewill is apparently Overrated!"

I have a different experience from you Doug.
I support multiple sites where the main application does not fully support Windows 10. About 3rd of those machines though have either updated to Windows 10 because a user clicked the wrong button or upgraded intentionally, they were all running Windows 7 Professional. Each one so far works with no issues, network printers, scanners, database, network shares, old versions of Word - Excel, etc etc.
The only "problem" for me was I use Logmein to remotely access these pc's. It reported that important updates needed to be installed yet Windows Update said all updates were installed. I had to go to the Dell website to update the drivers. Not such a bad thing but I will have to do that for many machines..
Another pain for me is I schedule these pc's to run a full scan for virus's and malware in the early morning each day. In Windows 10 I now have set that up in the Scheduler, more clicking to setup than before..
I also upgraded to Windows 10 on my Mac's running VMWare. All my programs work well, faster and image boots quicker than Windows 7.
On one Mac / Windows 10, I was unable to click the Start button, known issue, install the latest update and all ok.
You have until the end of July until Microsoft removes the option of a free upgrade to Windows 10, after that ~$100. Maybe they will move that date out.
I recently reloaded an older pc in which the power supply had failed. I upgraded this pc with a Samsung Pro SSD drive to give it a new lease of life. After I installed Windows 7 Pro from DVD it took 2 days until Windows Update even came back and told me it needed it install ~150 updates. Even just selecting one update then took a day before it even started to download that update. Subsequent updates were a bit quicker but it seems Microsoft is deploying its Windows Update servers away from Windows 7 updates.
This is also posted online, even just selecting one update from the Microsoft website does not help.
Another issue I hit with Windows 7 was the syncing of mirrored drives after a reboot. Microsoft's answer was, it will be fixed in the next operating system version. For Windows 7 a fix was a registry change.
One way or another they will "retire" old operating systems.
YMMV