When you start MS Word you are faced with a blank screen with a number of toobars visible. Usually these are the Standard toolbar, Formatting toolbar and the Drawing toolbar, but this does differ from computer to computer

This example will show how to add the Reviewing toolbar.

To add a toobar:

1. Click on View | Toolbars

You will see a list of toolbars. Those with "ticks" in the boxes are the ones that will be visible.

2. Click on Reviewing to add the Reviewing toolbar

This toolbar is added :

Notice the Reviewing toolbar amongst the toolbars, now that it has been added: