Windows Update persistent Error Code 80070490

Is your computer on a domain?

No, it is not on a domain, from what I know. It's a standalone PC. How can I verify this?

You don't need to repeat reply in order to post your responses.  Use the same reply form.

I asked, "Are you on a domain"

http://technet.microsoft.com/en-us/library/cc770472(v=WS.10).aspx

As for Fixit's, there are numerous fixits for numerous reasons.

Yes, I had no protection for a long time...

Related references may include:

Can I install Microsoft Security Essentials [or any other anti-virus/anti-spyware application] to clean up my already-infected computer?

http://answers.microsoft.com/thread/87058857-d181-4019-a723-efd9a49d9275

Do I need both Microsoft Security Essentials and another antivirus software program [e.g., AVG Free]?

http://blogs.msdn.com/b/securitytipstalk/archive/2010/09/08/do-i-need-both-microsoft-security-essentials-and-another-antivirus-software-program.aspx

Chances are you're seeing the effects of an ongoing & longstanding hijackware infection!

**OPTION A:** For home users, no-charge support for security updates (only!) is available by calling 800-MICROSOFT (800-642-7676) in the US or 877-568-2495 in Canada. [1]

For more information about how to contact your local Microsoft subsidiary [i.e., in other regions] for support issues relating to security updates (only!), visit the following Microsoft International Support website:
[http://support.microsoft.com/common/international.aspx?rdpath=4](http://support.microsoft.com/common/international.aspx?rdpath=4)

**OPTION B:** Residents of North America (US & CA), the UK (and perhaps other regions now) may obtain
*Microsoft-sponsored* **Premium** (i.e., paid) **Support** via the Answer Desk =>
[http://answerdesk.microsoftstore.com](http://answerdesk.microsoftstore.com/) [2]

**OPTION C (Recommended):** See...

   • Cleaning a Compromised System  

      [http://technet.microsoft.com/en-us/library/cc700813.aspx](http://technet.microsoft.com/en-us/library/cc700813.aspx)

Then see the (my) ANSWER post in this thread and follow those instructions (*to-the-letter &in order!* ) to return your computer to a secure & functional state: [http://answers.microsoft.com/thread/bc95f2f0-7968-4bd0-8de5-70b83db31fa6](http://answers.microsoft.com/thread/bc95f2f0-7968-4bd0-8de5-70b83db31fa6)

If you need additional assistance with the clean install of Win7, please begin your own, new thread in this forum:
[http://answers.microsoft.com/en-us/windows/forum/windows_7-system](http://answers.microsoft.com/en-us/windows/forum/windows_7-system)

If these procedures are outside of your technical "comfort zone" - and there is no shame in admitting this isn't your cup of tea - take the computer to a local, reputable and
*independent* (i.e., not a "BigBoxStore" or the Geek Squad!) computer repair shop & let them do the work.

**Note: The computer should NOT be connected to the internet *or any local networks* (i.e., other computers) in its current state. All of your personal data (e.g., online banking & credit-card passwords) should be considered at-risk, if not already compromised.**

Wish I'd had better news for you.  Good luck!  Over & out...

*I have nothing further to contribute to this discussion so I shall no longer monitoring this thread.*

=================================================  

[1] Monday through Friday, 5:00 AM - 9:00 PM Pacific Time; Saturday and Sunday, 6:00 AM – 3:00 PM Pacific Time

[2] $99.00 USD for "up to 2 hours" of remote support; fee must be paid up front;
*no guarantees whatsoever!*

I have absolutely no strange symptoms of being hijacked. Furthermore I may have had AVG uninstalled, but I made sure I turned on the Windows Defender, Windows Firewall, MS Security Essentials AND I was patched with all those patches you asked me before.

There is no sensitive banking data and stuff in my system, so the worst case senario would be to lose the non-backed-up data. But I am fully backed up.

Finally, the first symptoms of being unable to update coincide with the suspicious period when my memory chips failed, which gave me a few blue screens, and I had them replaced. So we have a plausible alternative cause.

In light of all the above, I don't think my PC is hijacked, and if it was, I am willing to take the risk. So can we please see how I can get my Windows Update tool back to working?

Have you used this repair tool?

http://support.microsoft.com/mats/windows_update/

Go here to see if you have the latest version of Windows Update

If you go to the following Windows Update website before the Windows Update Agent is automatically installed, you are prompted to install it:

Windows Update