Here is the hotfix from Microsoft...
http://support.microsoft.com/kb/972397
It's a known issue with windows installer 4.5 and vista, according to the
microsoft tech I spoke with today. I had quite a few computers with this
problem in my environment. As soon as I installed the hotfix, everything
installed. You can request the fix for Vista and you can also request if for
XP.
Cheers,
Sergio
"Satish" wrote:
> Hi,
>
> I'm being prompted by the Windows Update software to install the following 6
> "Important" updates to the Windows Office 2007 suite. Every time, I click
> the install button, it goes through the motions and comes up with the message
> that the install failed with error code 646 and points me to a useless help
> page to fix the problem. Has anyone else come across this problem? I am
> running McAfee security suite provided by AT&T Uverse.
>
> Here are the updates that fail to install properly.
> KB973709
> KB972581
> KB974810
> KB973636
> KB974234
> KB972363