How do I repair Windows update error code 80071a91?

wcoil
wcoil used Ask the Experts™
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I am attempting to repair a Windows Vista PC and it will not run Windows Update.  It does not matter if all updates are selected or just 1, Windows Update will start to download the updates and then gives an error code of 80071a91.  The error code is always the same.  according to Microsoft's website this is due to bad .blf and .regtrans-ms files and they suggest doing the following from command prompt run as admin:

cd/d%SystemRoot%\System32\SMI\Store\Machine
attrib -s -h *
del *.blf
del *.regtrans-ms
followed by a reboot to rebuild these files

I have tried this and am still getting the same error code.  The updates that are trying to install are: KB973346, KB969B97, KB961371, KB961501, KB96B537, KB970238, KB967632, and KB905866.  Any advice would be appreciated.
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Commented:
First, run services.msc, the stop the Windows Update service. Now go to c:\windows and rename SoftwareDistribution to SoftwareDistribution.old. Restart the Windows Update service and try again.
Rodney BarnhardtServer Administrator

Commented:
> Open Start, Run, and run these commands, one by one:
>
> regsvr32 /s wuapi.dll
> regsvr32 /s wuaueng1.dll
> regsvr32 /s wuaueng.dll
> regsvr32 /s wucltui.dll
> regsvr32 /s wups2.dll
> regsvr32 /s wups.dll
> regsvr32 /s wuweb.dll

The try to install the updates.
You could also reinstall the windows update client and see if that helps.

go.microsoft.com/fwlink/?LinkID=91237


Commented:
I was actually able to find a fix at this site:  http://blog.stevex.net/index.php/2007/05/21/80071a91/

The solutions is under
HelpingyouOut Says:
September 12th, 2007 at 7:22 pm

Thanks for all the suggestions.

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