Microsoft Office 2008 for Mac has just released a Service Pack update this Tuesday (download here). It contains several changes that improve security, stability, and performance. This includes fixes for vulnerabilities that an attacker can use to overwrite the contents of a computer’s memory by using malicious code.
However, after completing the installation, some users may experience a problem where the Setup Assistant starts up every time they try to launch any Office application. According to The Entourage Help Blog, [t]his situation is a result of when the Office Setup Assistant detects that an invalid Product Key was used to install Office 2008.
To resolve this issue, please move the following files to the Trash:
- /Users/username/Library/Preferences/Microsoft/Office 2008/Microsoft Office 2008 settings.plist
- /Applications/Microsoft Office 2008/Office/OfficePID.plist
After you complete these steps, open any Office application, and then use the product key that is included with your original installation disk to complete the installation. The product key is located on the back of the Office 2008 for Mac DVD sleeve or on the back of the Install Guide.