0x8007007E error

0x800A138F

To try and resolve the error 0x80072EE2, use the following tips... After each tip test to determine whether the issue is resolved.
 

Step 1) - Windows XP Only...
 

There are many applications that ship with MSXML 3.0. Uninstalling any one of those applications on a Windows XP system could potentially unregister the MSXML 3.0 assembly files (msxml3.dll and msxml3r.dll).
We should only have to register just the one file...
 

To Do This:

Click Start menu, and then click the Run icon. 
In the small box that Opens, type the three letters:  cmd  then click the OK button. 
In the command prompt window that just opened (a black background and white text), type the following commands, pressing the ENTER key on your keyboard afterwards:

regsvr32 msxml3.dll

Now type the word: exit  and the window will close.  
Now Reboot and try and Microsoft Windows Update again....

If it fails with the 0x8007007E error again try Step 2

Step 2) - Windows XP Only...

Now lets update your system with the latest Microsoft XML Parser (MSXML) version 3.0 SP4

Download Here  (use the msxml3usa.msi for the English language version.)

Notes....

a) You will need to reinstall MSXML 3.0 SP4 if you upgraded to Windows XP from a computer running one of the following operating systems:

· Windows 98

· Windows ME

· Windows NT 4.0

b) Windows 2003 server ships with version 3.0 - SP4 and so you do not need to install it.

c) Occasionally, setup may need to reboot the computer but fails to inform the user. Therefore reboot your machine just in case. Then try Windows Update again...

d) To install a localized (e.g. English) version of MSXML 3.0 SP4 on a system different from the previously installed version/locale (e.g. French) of MSXML 3.0 SP4, complete the following steps:

Unregister the existing installation package by executing the following command in a Command Prompt window:

msiexec /qn /x {45534579-B75B-4A42-953B-2EF8E1DEB4F3}

Now install the new localized version of MSXML 3.0 SP4.

If it fails with the 0x8007007E error again try Step 3

Step 3) - Windows XP Only...

Scan For Missing/Corrupt System Files...

Windows XP comes with a wonderful tool called System File Checker (SFC) It scans and verifies the versions of all protected system files after you restart your computer... However it can sometimes miss a problem, so we can run the tool now to replace CABINET.DLL and URLMON.DLL if there is a problem with them:

To Do This:

Click Start menu, and then click the Run icon. 
In the small box that Opens, type the three letters:  cmd  then click the OK button. 
In the command prompt window that just opened (a black background and white text), type the following command:

SFC /scannow

and then click OK
 

You must be logged on as a member of the Administrators group to run SFC..

You will need your Windows XP CD during this procedure if SFC needs to get an original file. Please remember that Windows XP can have multiple instances of a .DLL file and remember which version is for which program.

Notes....

I have been asked if it is possible to have a "progress meter" show when SFC runs... This is the registry hack you need. PLEASE do not go messing with your registry if you do NOT know what you are doing!

System Key:  [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]

Value Name: SFCShowProgress

Data Type: REG_DWORD (DWORD Value)

Value Data: (0 = disabled, 1 = enabled)

IMPORTANT: This article will cure the 0x8007007E problem for many of you. However if it does NOT then I would love to here from you. Or, did YOU try something else that worked? Then email me the fix too!

You may also find these error codes useful - for future reference, especially when trying to figure out error messages in the Windows Update log! (They are only given here as a guide to general problems and will require further research on your part to resolve the particular problem you may be having.)
 

I had this email in from a site visitor:

---------------------------------------------------------------

Subject: Addition to your article on http://www.updatexp.com/0x8007007E.html 

Hello Marc,

Having read your web page looking for a fix you quite correctly prompted
me to look in the c:\windows\windows update.log
(I'm running windows 98SE)

It showed this line at the bottom of the file:

Error IUENGINE Determining machine configuration (Error
0x80040154: Class not registered)

By the look of it, it seems that the all the XML dll's might not be
registered into the system correctly.

One of the un-stated windows update requirements is that the msxml.dll
must be registered correctly, I tried using REGSVR32 and to my surprise
it worked. See below:

Start,

Run:

REGSVR32 C:\WINDOWS\SYSTEM\MSXML.DLL

You should see a popup that tells you the process has succeeded. If not try with MSXML2.dll or MSXML3.dll.

After this I tried the windows update and to my surprise it worked, no more 0x8007007E error.

Regards,

David.