Unlock and Customize Toolbars

Many features of Windows XP are accessible via the toolbars, including the Task Bar, Start Menu and features within Internet Explorer and Outlook Express. The majority of toolbars in XP are locked by default to prevent changes. To customize the toolbars:

Right-click the toolbar to be modified, then click [Lock the Toolbars] to remove the check mark.
Right-click the toolbar again, then click [Customize].
Add and remove toolbar buttons. Change text and icon options. When you've got the toolbar customized, Click [Close] when the customization is complete.
Right-click on the toolbar and click [Lock the Toolbars] to lock them in place.