Okay, I finally got the update to install successfully. In case this helps
anyone else, I installed it in Safe Mode following the instructions in this
Help and Support article:
http://support.microsoft.com/kb/910339
(scroll down to "Method 3" under "Troubleshoot the Problem")
"Ziff" wrote:
> I have a computer running Windows XP, Service Pack 3. I have automatic
> notification of updates turned on. A few days ago, Windows prompted me to
> download some updates including KB967715. All of the updates installed
> successfully. But Windows has repeatedly asked me to install the KB967715
> update again. I have tried again, twice, but it persists in presenting it as
> a new update.
>
> When I look at my update history, all three installs of KB967715 are listed,
> and all of them are listed as being successful.
>
> I think there must be some failure in the installation, though, because I
> have another computer also running XP SP 3, and when I installed this update
> on that computer, Windows prompted me to reboot. On this computer--the one
> I'm having difficulty with--Windows has never prompted me to reboot after
> completing the installation. I have rebooted, but each time I do, the
> notification pops up again that I need to install this same update.