
If using Outlook 2007, then select “File| New| Folder…” from the Menu Bar. If using Outlook 2013:2010, click the “New Folder” button in the “New” button group on the “Folder” tab in the Ribbon.

To create a public folder in Outlook, click the “All Public Folders” folder in the Folder List to select it. You can then click on one of the public folders in the list to view its contents. If you have public folders already created in this folder, you can double-click the “All Public Folders” folder to view the public folders that have already been created. You can view the Folder List in Outlook by clicking the “Folder List” button at the bottom of the Navigation Bar. To select and view a public folder, you must expand the “Public Folders” folder and then expand the “All Public Folders” folder in the Folder List. To benefit from this feature, however, you do need to use Outlook with a Microsoft Exchange Server 2003 or later on your network. You can use this terrific feature to set up meetings, schedule employees’ tasks, and post information into folders that are accessible to people on your network. You can create a public folder in Outlook to which you can post public conversation topics or any type of item that Outlook can store in its normal folders like e-mail, calendars, and tasks. Create a Public Folder in Outlook: Overview
