Blender Save Group

Hi Everyone am new to blender and need some help to get the node group in my default blender startup file thanks
was trying to save a node group in my default blender startup file thanks

Select the node group and show its properties (N). Next to its name press the ‘F’ button to give it a fake user. This will prevent the node group being auto deleted. Then save this file as your startup file (Ctrl+U)