On the Home page of your site, click the Settings button (the small gear icon next to the name of the logged-on user). On the menu that appears, click Site Settings.
On the Site Settings page, in the Look And Feel section, click the Top Link Bar link.
On the Top Link Bar settings page, you can create a new link by clicking the New Navigation Link button.
From the New Navigation Link page, type the URL and a descriptive label (which display on the Top Link bar) for the link.
When users click the link, they are taken to the URL that you entered.
Click OK to save your new heading.
You can determine that the Publishing Infrastructure feature has not been activated on the root site collection if the Quick Launch and Top Link Bar links are available in the Look And Feel section on the Site Settings page.
