Error code 646 WindowsUpdate - with Vista

While trying to run Windows Update for:

  1. KB982311 Office 2003
  2. KB982333 Excel 2003
  3. KB982322 Publisher 2003
  4. KB982334 Word 2003
  5. KB982357 PowerPoint 2003
  6. Outlook 2003 Junk e-mail filter KB983503
  7. KB980923 path of information 2003

I received the error 646 and the updates failed.  I've disabled all virus scan, including Windows Defender.  I did have problems updating my system so far.  I am running Vista Ultimate Version 6.0 (Build 6002: Service Pack 2) OS and have at least 100 GB of free disk space.

Help!

Please see the reminder:

http://social.answers.Microsoft.com/forums/en-us/vistawu/thread/18449f60-C149-4EAF-B8E6-a2880cd7232b

Summary of the issue:

We are aware of a potential problem that you may experience with the latest updates to Office security.   When you install these updates, the Windows Update control panel returns the error 646 or 0 x 80070646.

Technical details:

Error 0 x 80070646 or 646 is a MSI installer error that won't happen when the updates are installed via the Windows Update control panel.  Workaround solution previous to solve the immediate problem requires the installation of the update to a standalone package starting from Microsoft Download Center.  We do not recommend this workaround solution.

If the Windows Installer logging is enabled, the following line must be identified as a symptom:

Error 1606. Could access the location %APPDATA%\ network

 

 

Cause:

The problem is potentially a result of an incompatible, incorrect environment (%AppData%) as variable shown below:

Solution:

1. open the registry editor.  To do this, click Start, type regedit in the search box, and then click regedit.exe in the list programs. In the user account control dialog box, click on continue.

2 go to the following registryHKEY_USERS\ keys. DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders

 

3. the correct and should be the default value forAppData % USERPROFILE%\AppData\Roaming. To edit the value, double click on Appdata, then change the string in the value data field.

4. close the registry editor, and then try Windows Update again. (A restart article be required).

5. If the problem persists, repeat the steps 2 to 4 with the registry keys:

·        HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell dossiers\

·        HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell dossiers\

TaurArian [MVP] 2005-2010 - Update Services

Tags: Windows

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