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WSUS and list of needed updates

Posted on 2013-01-25
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Last Modified: 2013-02-20
Hello, we have a WSUS server controlling circa a dozen clients. All machines are Windows 2003. For some servers, WSUS won't show any needed/pending updates but if i manually run Win Updates i see that there is a bunch of them needed. For other servers WSUS reports numerous missing updates but if i run Win Updates manually i see that everything is installed. It seems as if WSUS doesn't report the updates properly. Why is this? How can i fix it? thx! :-)
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Question by:criskrit
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Expert Comment

by:Gabriel Clifton
ID: 38818575
It is usually not the WSUS but rather the computer getting the updates. Try this batch script.

@ECHO OFF
net stop wuauserv 

echo -----------------------------------------------------------------------
echo This batch file will register all of the files associated
echo with a visit to the Microsoft Update / Windows Update
echo resources.
echo.
echo -----------------------------------------------------------------------

cls

echo ---Registering Widows Update Agent DLLs---
regsvr32 /s %systemroot%\system32\wuapi.dll
regsvr32 /s %systemroot%\system32\wuaueng.dll
regsvr32 /s %systemroot%\system32\wuaueng1.dll
regsvr32 /s %systemroot%\system32\wucltui.dll
regsvr32 /s %systemroot%\system32\wups.dll
regsvr32 /s %systemroot%\system32\wups2.dll
regsvr32 /s %systemroot%\system32\wuweb.dll

echo.
echo --Done registering Windows Update Agent DLLs
echo.

echo ---Registering Microsoft XML DLLs---
regsvr32 /s %systemroot%\system32\msxml3.dll
echo.
echo.

echo --Done registering Microsoft XML DLLs
echo.

echo PROCESS COMPLETE!
echo.

 Del "C:\Windows\SoftwareDistribution\DataStore\*.*" /f /q
net start wuauserv 
wuauclt.exe /resetauthorization /detectnow

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Expert Comment

by:dstewartjr
ID: 38819049
Are you approving all updates that are needed within the WSUS console ???

Have these servers been rebooted ??? If there is a pending reboot, future updates that are needed wont be detected until the reboot has taken place.

Are there any errors in their windowsupdate.log ???
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Author Comment

by:criskrit
ID: 38827210
Hello and thank you for the replies. Lets deal with clients for which WSUS doesn't report needed updates. I am testing using two such clients, WSUS says that they are both up-to-date but Microsoft Update says they both need at least 60 updates! (the latter seems correct as these computers haven't been updated in almost a year).

I stopped the Automatic Update service, deleted the contents of DataStore folder, then started the Automatic Update service and ran "wuauclt.exe /resetauthorization /detectnow" and "wuauclt.exe /reportnow". I can see the "last status report" time for these clients being updated in WSUS but they still show up as needing no updates. I also checked the windowsupdate.log and it doesn't report any error messages and says that "0 updates were found". However Microsoft Update still reports 60+ updates missing. These servers don't need a reboot (if they did MS Update wouldn't report updates either).

any more ideas?
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Expert Comment

by:Gabriel Clifton
ID: 38827373
Updates in Microsoft update that are not showing up in the wsus updates have probably been rejected in wsus at some point
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Author Comment

by:criskrit
ID: 38827470
as far as i know, nobody touched WSUS or MS Update for about a year. However if the updates have indeed been rejected, how can i "un-reject" them?
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Expert Comment

by:Gabriel Clifton
ID: 38827866
Do a search in the wsus for the update and approve it. It can be rejected years ago and any future updates to it will also be rejected
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Accepted Solution

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criskrit earned 0 total points
ID: 38844633
I discovered the problem, our WSUS wasn't synchronizing automatically any more so it had vastly outdated update definitions. I sync'ed and now it reports the correct update status of the clients.
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LVL 13

Expert Comment

by:Gabriel Clifton
ID: 38844687
Good to hear you got it fixed
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