|Try from within Excel/Word:|
Running Microsoft Office Diagnostics from within Excel/Word
Click the Microsoft Office button
Click on the Excel/Word Options button to bring up the Excel Options dialog box (at the bottom of window)
Click on the Resources button in the left hand pane
Click on the Diagnose button in the right hand pane
Click Run Diagnostics
If that does not work then you will have to do it from Add/Remove in the Control Panel.
Click Control Panel
Click Add or Remove Programs
Scroll down to the Microsoft Office Home and Student entry
When you click on the entry, there should be TWO buttons on the right side.
One labeled Remove
One labeled Change
Click on the Change Button,
You should be offered three choices,
Add or Remove Features
See if that helps.