[Error number: 0x8DDD0007] - Unable to download Windows updates

In August, Auto Updates pulled down critical updates from the Microsoft site
that I eventually installed on my XP Pro SP2 laptop (Dell Latitude D800).  
Since then, I have been unable to download updates through Auto Updates or
the Windows Update site.  Now when Auto Updates is enabled on my machine (and
since I've installed these critical updates), I'm continuously propmpted to
restart my machine so that the updates can finish installing.  The critical
updates that installed on my machine "broke" something that has rendered Auto
Updates and the Windows Update site useless on my laptop.  To band aid the
problem, I've simply disabled Automatic Updates.  For Auto Updates continued
to prompt me to restart my computer every 5-10 mins.  (After the initial
download and after being prompted the fourth time, I disabled AU).

When I try to download updates through Windows Update web site, I get the
following error "[Error number: 0x8DDD0007]
  You need to restart your computer to finish installing a program or
updates. You cannot view or get other updates from the site until you
restart. " 

I have searched the Internet and MS web site concerning this error number.  
The only thing that MS has had to say about this error number was from a user
in the Windows Update forum.  The solution was to remove a Registry Key called
"RebootRequired" located under
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\AutoUpdate

Other websites have noted to delete the RebootRequired key in order to
resolve this issue.  In my case, I have deleted the key, only for it to be
regenerated by a service upon initial computer startup.  Users have stated in
other forums that once this key is deleted, they are able to access the
Windows Update site and download updates.

What I have done so far is the following that doesn't seem to help:
*System Restore
*Reinstall version 6 of Windows update (renamed wuauclt.exe and wuweb.dll).  
After renaming these files, I was able to connect to WU, installed the latest
version, but still received Error number: 0x8DDD0007 after successful install.
*Renamed WindowsUpdate key under the above mentioned HKLM path (after
exporting first of course)
*Virus Scan (clean)
*Spyware Scan (clean)
*Deleted contents of C:\WINDOWS\SoftwareDistribution

If anyone can help me with this, I would be very grateful.  I'm trying to
prevent reinstalling Windows on my machine in order to get WU/AU working
properly.  I imagine there is a file or registry that is corrupted somewhere.

Thank you in advance for assistance.
ddamrauAsked:
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chookisaCommented:
http://sniptools.com/tipstricks/getting-errors-with-windowsupdate

First, click on START —> RUN —> regsvr32 iuctl.dll /u —> OK to un-register the library.
Then, use START —> SEARCH to search for Files and Folders. Type iuengine.dll, iuctl.dll into the file search box.
Delete all occurrences of these two files, deleting the ones in %SystemRoot%\System32 (e.g., c:\windows\system32) last.
Close all Internet Explorer Windows.
Use CONTROL PANEL —> INTERNET OPTIONS to delete your Temporary Internet Files, checking Delete all offline content, and pressing OK
Press the Clear History button and YES to confirm the deletion.
On the Security tab, select Trusted Sites. Set the security to Low and Apply the change.
Press the Sites button.
Uncheck Require server verification. Type http://*.windowsupdate.microsoft.com. Press Add and OK.
Press OK to close the Internet Options dialog.
Use My Computer / Tools / Folder Option / View to check show hidden files and folders.
Use Windows Explorer to navigate to %ProgramFiles%\WindowsUpdate, generally at C:\Program Files\WindowsUpdate.
Delete every file and sub-folder, except the V4 sub-folder.
Expand the V4 sub-folder and delete every file and sub-folder except iuhist.xml, which contains your Windows Update installation history.
Disable any anti-virus, browser accelerators, and download utilities that might interfere with the native operation of Windows Update.
Try using http://windowsupdate.microsoft.com.
NOTE: Make sure that any proxy server or firewall is NOT preventing Windows Update from working. These instructions have worked for friends with Windows 2000, Windows XP Home and Windows XP Pro
tim_quiCommented:
ddamrau,

Have alook at these, it could be a validation problem with your copy of windows.


http://support.microsoft.com/default.aspx?scid=kb;en-us;330136

http://support.microsoft.com/kb/307890/EN-US/
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ddamrauAuthor Commented:
Hi all -- Thanks for your postings.  

Stafi -- We don't have SUS in our corporate network.  I followed the path listed in the WIndowsITPro article in Group Policy editor.  The farthest I can go down the line is  Security Settings.  There is no option for System Services that I saw on my machine.

Chooksia -- I tried your suggesstion and that did not seem to work for me.

Tim-qui -- My copy of Windows is validated.  I ran the validation utility with problem.

Still looking for answers to this one.  It's got me stumped pretty good.  I'm being patient and holding off on reinstalling Windows.  I appreciate everyones input.
tim_quiCommented:
Have not heard back from you, what is status?
vannstockwellCommented:
start > run
regedit
<enter>

navigate to

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
\WindowsUpdate\Auto Update

if subkey REBOOTREQUIRED is there manually remove it.  It is left behind sometimes.

Reboot and try windows update again.
ddamrauAuthor Commented:
All suggestions posted, were tried with no resolve.  It looks as if I will be restoring from scratch.  I appreciate everyone's input.
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