To restore missing toolbars and to customize features in any Office application, use the View menu and choose Customize.
To add or remove Office components, use the Microsoft Office CD and Add Or Remove Programs in Control Panel.
To learn to format bulleted and numbered lists, embed and link objects, create and edit formulas, package and share presentations, and resolve issues with other Office components or tasks, visit Microsoft Office Online.
To recover lost files, use Microsoft Office Application Recovery, AutoRecover, and the Open and Repair options.