This doesn't help. Your link references updates that are included in the SP3
install. So the updates you link says to install to correct that problem
were already installed with Service Pack 3.

Further, I did not have this problem prior to SP3 being installed. Please
tell me how to correct the problem with Service Pack 3 already installed.

"Carey Frisch [MVP]" wrote:

> When you run Windows Update to scan for updates that use Windows Installer, including Office updates, you may experience a memory
> leak, or you may receive an error message for the Svchost process
> http://support.microsoft.com/kb/916089/
>
> --
> Carey Frisch
> Microsoft MVP
> Windows Desktop Experience -
> Windows Vista Enthusiast
>
> ---------------------------------------------------------------
>
> "Will" <Will@discussions.microsoft.com> wrote in message news:40AE8209-E106-4C88-A613-165139A1242C@microsoft.com...
> Hello,
>
> I recently installed SP3 on my laptop and desktop PC's running Windows XP
> Home SP2. Everything was fine for about a week, but last night, both PC's
> slowed till a standstill and became unusable.
>
> The show an instance of SVCHost.exe using 99% of the CPU. I used Process
> Explorer to narrow the problem down to the Automatic Update service. Stop it
> and SVCHost.exe goes to 0% usage and System Idle jumps back to 99%.
>
> I left the PC on today for 12 hours to see if it was actually downloading
> something and might "fix" itself. After 12 hours, it was still using 99% for
> svchost. No network activity light and no hard drive usage; just running the
> PC full bore.
>
> I knew this was a problem that happened to some people a year ago, and there
> was a fix. However, wasn't SP3 supposed to have all those fixes. Why did
> this start happenening on two different PC's at exactly the same time,, with
> both having SP3 installed.
>
> Also SP3 was installed from disc, not download and installed with no errors
> on either machine.
>
> Can anyone help me with a solution that will allow me to use automatic
> updates, and not have svchost.exe use 99% of my CPU. With the problem, it
> takes 10 minutes to open Explorer, or even 5 minutes just to get a command
> prompt to come up.
>
>