Just for the record, you can disable Windows Update yourself quite easily.
Open File Explorer, select C:\Windows\system32, right click 'system32'. There's a permissions menu. Click that. I am not sure where it is but somewhere there's advanced permissions, and you take ownership of the folder and delete any permissions except administrators, and give that one full control. Remove all others. (don't worry it doesn't break anything, just gives you write access to the files inside). Takes awhile but eventually completes.
Once that's done, ctrl-alt-del to open task manager. Go to where processes are, select detailed or all processes (they change the name so often I can't keep up) and somewhere you might see a 'musnotifyicon.exe' running if the little icon with green dot is in your system tray awaiting a restart to finish updates. Find that file in system32, and you have to be quick. But kill the task and delete the file before it respawns itself. If done, the file is gone, and the icon will vanish once you mouse over it. Also make sure to delete the file taskchd.exe, which makes Windows update service restart itself if disabled or if it crashes.
Open run (Win+R) and type 'services.msc.' Once that launches, find Windows Update and Update Orchestrator service and disable them. Stop them first, then select 'disabled' in the drop down list. Since the scheduler is gone, they can never restart.
This should effectively disable any and all Windows updates. You might get some icon or error saying 'windows update needs repair' in Settings, but ignore it. If you actually need or desire to update in the future, there's a Windows Update Assistant you can download on Microsoft's page that does it manually, and offers a way to undo any changes if something breaks.
Personally, those lines of text I spat into the terminal were loads faster to achieve the same results in Linux.