I had the same problem. You will have to de-install and re-install Office. If
Office does not show up in the Control Panel's Add/Remove programs, simply
install it.

If you have a Windows Installer Error like I did then do this:
http://aumha.net/viewtopic.php?t=19195

"unjida por Dios" wrote:

I just used Word about 4-5 days ago and it was fine. Now I can not open Word
or any other Microsoft office program, I get the same message. I do not know
what to do. Please help!