I am getting error code 80070490 - Windows Update Encountered an Unknown Error

Hello Experts,

I am getting error code 80070490 - Windows Update Encountered an Unknown Error on my Windows Server 2008 x64 Standard machine.  No errors in event log that I can see.  Nothing much on the web other than 'Reinstall' or 'Upgrade'.

Here's a screen grab:
http://www.screencast.com/users/Bickers/folders/Jing/media/387c1eda-667b-4f55-8971-922c48597f92

Hope you can help.

Hubert C

HubertCarpetAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Rob HutchinsonTech Lead, Desktop SupportCommented:
This might help:
Answer Ninja'd from Micro$oft's website:
http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?dg=microsoft.public.windowsupdate&tid=1f153ed7-8081-4715-a18a-fbf64f9a0012&p=1

The issue can be caused by a damaged .NET Framework component. At this time,
let's refer to the following steps to troubleshoot it:

Step 1: Download Microsoft Windows Installer CleanUp utility
============================================
1. Visit:
http://download.microsoft.com/download/E/9/D/E9D80355-7AB4-45B8-80E8-983A48D5E1BD/msicuu2.exe 
2. Please save the file on your Desktop
3. Please double click the msicuu2.exe file to install it onto your computer.

Step 2: Remove .NET Framework 2.0
===========================
1. Click Start Button -> All Programs->Windows Installer Clean Up.
2. Please locate and remove.NET Framework software.
After that, please perform the following suggestions to reinstall .NET
Framework 2.0 and its update.

Step 3: Reinstall .NET Framework Version 2.0 Redistributable Package and its
update
================================================================
Please download and install the following updates one by one using sequence.
Microsoft .NET Framework Version 2.0 Redistributable Package (x86) http://download.microsoft.com/download/5/6/7/567758a3-759e-473e-bf8f-52154438565a/dotnetfx.exe 
.NET Framework 2.0 SYSTEM.WEB.DLL Security Update for Windows Vista http://www.microsoft.com/downloads/details.aspx?FamilyID=cbc9f3cf-c3c3-45c4-82e3-e11398bc2cd2&DisplayLang=en 
Rob HutchinsonTech Lead, Desktop SupportCommented:
Might also want to reinstall the version of .Net framework that you are currently using and not just follow the steps blindly installing ver 2.0
sirhubertCommented:
Many thanks for this - sorry for not replying sooner (I did return to look at my XX account but have no open questions shown so figured it had got lost!)  Anyway, in the meantime I did a OS repair/re-install which did the trick.  I will file away your answer for future reference however as I have a feeling this might crop up again!
ee_autoCommented:
Question PAQ'd, 500 points refunded, and stored in the solution database.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2008

From novice to tech pro — start learning today.