Try this:
FIRST, TURN OFF AUTOMATIC UPDATES USING THIS METHOD:
(1) Go to the START menu.
(2) Right click MY COMPUTER.
(3) Click PROPERTIES and then the AUTOMATIC UPDATES tab.
(4) Choose TURN OFF AUTOMATIC UPDATES.
(5) Reboot your computer.
THEN, INSTALL AND RUN THE MICROSOFT INSTALLER CLEANUP UTILITY:
http://support.microsoft.com/default.aspx?scid=kb;en-us;295823
Use it to remove all versions of Office, Excel Viewer, etc. (FIRST, make sure that you have another copy of these programs on a CD so that you can reinstall them).
NEXT, REBOOT YOUR COMPUTER & REINSTALL THE MS OFFICE PROGRAMS (Word, Excel, Powerpoint, Outlook, and/or whatever else that you use) BY USING YOUR OFFICE CD.
THEN, RUN ALL THE UPDATES.
FINALLY, run Microsoft Baseline Security Analyzer 2.0 (this step is optional, you can do a search and download it for free from Microsoft). Also, turn the Automatic Updates back on on the Microsoft Update website.
WELL, it worked for me. YMMV. Good luck!