When you highlight text, MS Word 2007 displays the Mini Toolbar. It’s a toolbar that puts a number of formatting options at your fingertips [versus searching through the Ribbon options]. Not everyone likes the Mini Toolbar. Some people report that they find it downright annoying. So if are one of these people, then you can disable it, as below:
1. Click the Office button.
2. Click Word Options [bottom right].
3. Popular is selected by default in the left pane. Uncheck the first option, Show Mini Toolbar On Selection.
4. Click OK.
If you decide that you really do need it, just repeat the sequence and check Show Mini Toolbar On Section in step 3.