Normal suggestion is to uninstall the Trial version AND the Activation
Assistant, THEN install your paid for version.

Fred M wrote:

I bought my PC which had a trial version of Office Home and Student 2007
(Word, Excel, Powerpoint, OneNote). I also bought the licensed version of
Office Home and Student 2007 and installed it. Do I need to uninstall the
trial version or will it just expire and no longer interfere with anything?
Also, I did try to go thru the uninstall program routine but didn't see
either version of the Office Home and Student listed although I've been using
it, why wouldn't they should up in the installed program list?