Hi,
Based on my research, I would like to suggest the following:
1. Please ensure the installation media is not corrupted.
2. Run the installation again with Compatibility Mode as well as selecting the option “Run as Administrator”.
3. Boot the computer to Clean Boot environment and install again:
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
Considering this issue is related to Microsoft Office, if the issue persists, it is recommended that you go to Microsoft Office Forum for further investigation:
Microsoft Office Forums
Hope this helps. Thanks.
Nicholas Li - MSFT