Hi Bob, all the old methods to stop Windows 10 Updates, no longer work, this method will permanently stop Windows Updates:
Click your Start Button, type services and hit Enter
Scroll down to find Windows Update Service
If it is Started, double click it and stop that service
CLose the services App
Click your Start Button, type cmd, right click Command Prompt and choose 'Run as Administrator'
Run this command and hit Enter
sc delete wuauserv
Close Command Prompt
Restart your PC
If you also have the Update Assistant installed on your system:
The Update Assistant in Windows 10 cannot be uninstalled, but you can get rid of it
Click your Start Button, type Task Scheduler and hit enter
In the left Pane, navigate to: Windows - Update Orchestrater
Right Pane double click 'Update Assistant'
Click on Triggers Tab
On each of the triggers ( At login . . . etc.) double click and uncheck 'Enabled'
Under 'Update Assistant, there is another event 'Update Assistant CalendarRun'
Do the same for all triggers on that event
Restart your system, that's It!
When finished and after a system restart, open the services app and make sure the Windows Update Service is now gone . . .