If you enable this policy setting the Start menu search box will not search for programs or Control Panel items.If you disable or do not configure this policy setting the Start menu search box will search for programs and Control Panel items unless the user chooses not to do so directly in Control Panel.
Policy path:
Start Menu and Taskbar
Scope:
User
Supported on:
Windows Server 2008 Windows 7 and Windows Vista
Registry settings:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer!NoSearchProgramsInStartMenu
Filename:
StartMenu.admx