Remove Search menu from Start Menu
User Configuration\AdministrativeTemplates\Start Menu & Taskbar
Removes the Search item from the Start menu and disables some Windows Explorer search elements.
This policy removes the Search item from the Start menu and from the context menu that appears when you right-click the Start menu. Also, the system does not respond when users press F3 or the Application key (the key with the Windows logo)+ F .
In Windows Explorer, the Search item still appears on the Standard buttons toolbar, but the system does not respond when the user presses Ctrl + F. Also, Search does not appear in the context menu when you right-click an icon representing a drive or a folder.
This policy affects the specified user interface elements only. It does not affect Internet Explorer and does not prevent the user from using other methods to search.
This policy also affects the F3 key.