Fix for 100% CPU usage of svchost.exe has been updated but user need WSUS 3.0 too
Hotfix+WSUS 3.0 = permanent complete patch
A hotfix, updated just Thursday, is available on the Microsoft support site. The patch will be pushed out via Microsoft's usual update services, including Windows Update and Microsoft Update, late this month or in early June, said a developer on the WSUS blog. However, the fix can be downloaded and installed manually on Windows XP and Windows Server 2003 systems.
When you run Windows Update to scan for updates that use Windows Installer, including Office updates, CPU utilization may reach 100 percent for prolonged periods. http://support.microsoft.com/kb/927891/
Article ID : 927891
Last Review : May 10, 2007
Revision : 6.0
Users will also need to download and install the new stand-alone WSUS 3.0 client -- even those who don't rely on the enterprise-centric WSUS for updates -- to completely patch the problem. "It's important to keep in mind that the new WSUS client is only a partial solution and clients must have both KB927891 and the new 3.0 client installed for a full solution," the WSUS team blog read.
The new client and the WSUS update to version 3.0 will be available to WSUS on May 22. Like the hotfix, the client can also be downloaded manually and installed now. Instructions and a link to the download have been posted to the MSDN (Microsoft Developers Network) site.
So go to http://msdn2.microsoft.com/en-us/library/aa387285.aspx and read about "Updating the Windows Update Agent" after you've installed the hotifx (http://support.microsoft.com/kb/927891/). That is how they said will COMPLETEY PATCH the problem.
I grab the wuredist.cab (signed cabinet file) and this is what it has:
<?xml version="1.0" ?>
- <StandaloneRedist Version="30">
<architecture name="x86" clientVersion="7.0.6000.374" downloadUrl="http://download.windowsupdate.com/v7/windowsupdate/redist/standalone/WindowsUpdateAgent30-x86.exe" />
<architecture name="x64" clientVersion="7.0.6000.374" downloadUrl="http://download.windowsupdate.com/v7/windowsupdate/redist/standalone/WindowsUpdateAgent30-x64.exe" />
<architecture name="ia64" clientVersion="7.0.6000.374" downloadUrl="http://download.windowsupdate.com/v7/windowsupdate/redist/standalone/WindowsUpdateAgent30-ia64.exe" />
<MUAuthCab RevisionId="6" DownloadURL="http://download.windowsupdate.com/v7/windowsupdate/redist/standalone/MUAuth.cab" />
</StandaloneRedist>
</WURedist>
That's WSUS 3.0 folks so if your WUAUENG.DLL is not 7.0.6000.374, you need to update it or wait til Microsoft pushed it on May 22nd. Why wait if it's available for download now for users who are still experiencing the 100% CPU usage of svchost.exe after installing KB927891?