Is it in anyway (Template, Scripts, ...) possible to DEACTIVATE Windows Automatic Update on each client created with a specific template?
Should be possible with a script, but not with Patch Management > Windows Auto Update. That can only be used against an agent that has run a patch scan.
I've not tried to script it, but to start out, try checking out the registry key/reg add function below, this could work for you on at least XP/2k3.
Disable windows auto update shell command:
reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update" /v AUOptions /t REG_DWORD /d 1 /f
That sounds great. Thanks!