Frustration, maybe, that when the developers give a simple procedure for something, users feel the need to ignore it and dream up another way (that would clearly never work) and moan that it doesn't.
So - show us this simple procedure - one that works on Win7 Home and doesn't require knife and forking in the registry.
Basic/Home do actually support Group Policy, but the GUI is not installed. So you pop the info in the registry.
Is the registry that scary?
As per your own link earlier, which probably is one of the clearer explanations, you need:
Subkey: HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate
DWORD value: DisableOSUpgrade = 1Which 10s effort makes a .reg file:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate]
"DisableOSUpgrade"=dword:00000001
Or if you need it simpler (BUT I DO NOT RECOMMEND INSTALLING .reg FILES FROM THE INTERNET UNDER ANY CICUMSTANCES):
http://theboy.omegaowners.com/downloads/W10Block.regHTH