Hi,
In this case, you can open the command prompt to disable Windows Update:
reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" /v NoAutoUpdate /t REG_DWORD /d 1 /f
reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" /v AUOptions /t REG_DWORD /d 2 /f
Restart your PC.
You can create a scheduled task to always run this task to prevent Windows Update from activating.
Remember, it is not recommended to disable Windows Update because it updates security, build, and Windows drivers to keep the system and security up-to-date.
Thanks