This policy setting allows you to prevent users from rearranging toolbars.If you enable this policy setting users are not able to drag or drop toolbars to the taskbar.If you disable or do not configure this policy setting users are able to rearrange the toolbars on the taskbar.
Policy path:
Start Menu and Taskbar
Scope:
User
Supported on:
At least Windows Vista
Registry settings:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer!TaskbarNoDragToolbar
Filename:
Taskbar.admx