MS Office Word 2003--How do I stop the Installer box reinstalling

[larry_husted]

When, my computer is turned on and booted up. I click on to Microsoft
office word 2003 and a window installer box appears that says installing MS
Office Word Feature. Note also, that I have already activated this product
with the product key letters and numbers.
I have tried detect and repair and uninstalling and installing the MS Office
Student and Teacher Edition 2003. I still have the same problem each time I
boot up.