Prevents users from viewing and changing the properties of an existing task.This setting removes the Properties item from the File menu in Scheduled Tasks and from the context menu that appears when you right-click a task. As a result users cannot change any properties of a task. They can only see the properties that appear in Detail view and in the task preview.This setting prevents users from viewing and changing characteristics such as the program the task runs its schedule details idle time and power management settings and its security context.Note: This setting appears in the Computer Configuration and User Configuration folders. If both settings are configured the setting in Computer Configuration takes precedence over the setting in User Configuration.Tip: This setting affects existing tasks only. To prevent users from changing the properties of newly created tasks use the "Remove Advanced Menu" setting.
Windows Components\Task Scheduler
Windows Server 2003 Windows XP and Windows 2000 only
HKCU\Software\Policies\Microsoft\Windows\Task Scheduler5.0!Property Pages