Uninstall Cortana and any associated programs permanently

My goal is to make a Windows 10 install as free of any internet chatter in the background or foreground of Windows 10. In another thread I successfully had help removing Internet Explorer. Cortana is another tool
in the Windows 10 shell (rather than Classic Shell-- but another issue) which I found does almost nothing
but dial out to the internet.

My first hit on looking for answers was this:

Can I completely disable Cortana on Windows 10? - Super User

Superuser is a trusted site but that thread is closed and I have to read it more carefully.
In the piece they mention the term 'respawn' which was new to me. Can anyone explain? Also
there is mention and a screen shot of the OO program called Shut Up. OO Shut up was mentioned in my
effort to get rid of Internet Explorer.

A couple of techniques are mentioned and I don't know a best one-- one of which is a registry edit
which I am always cautious about doing-- Let's face it, I don't recall ever getting one right that
didn't cause me to wipe a drive.

In the screen shot at Superuser of OO Shut Up activity is shown not in Cortana but in Microsoft Edge.
That looks like another thing to remove since I don't know what it is.

Thanks for answering. Automatic updates is something to go as well. ;-) As an aside I did one of those system resets
-- the one that takes a couple hours. It made me wonder what it all had to do to get the original install state back and why.

But I have to put this on hold until I get a hardware problem fixed. I think it's power supply or some
other low level problem.