that are being built or that require frequent updating need to be accessible to their authors. But some webs, after they are finished, can contain essential or permanent information that should remain unchanged. Or, you may want to prevent others from modifying a web while you are moving it to a new location or making other changes. To protect the information in a web, you can disable authoring on it, which means that users can neither add to nor change web content.
To enable or disable authoring on a root web and its subwebs
To disable authoring, make sure that the Enable authoring check box is cleared.