I get what looks like a DoS attack every day at 7:43. It disables my PC for about 10 minutes. I have traced it a Mozilla task using the task scheduler. The scheduler provides the following information: The Background Update task checks for updates to Firefox when Firefox is not running. This task is installed automatically by Firefox, and is reinstalled when Firefox runs. To disable this task, update the browser settings or the Firefox enterprise policy setting “BackgroundAppUpdate”. I have gone into settings but can't find the BackgroundAppUpdate setting to see if disabling this task will solve the problem. Any idea where it is?