This policy setting allows you to turn off all notification balloons.If you enable this policy setting no notification balloons are shown to the user.If you disable or do not configure this policy setting notification balloons are shown to the user.
Policy path:
Start Menu and Taskbar
Scope:
User
Supported on:
At least Windows Vista
Registry settings:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer!TaskbarNoNotification
Filename:
Taskbar.admx