Error Code: C000009A (Problems applying update to registry during installation of Windows 7 Service Pack 1)

After the installation of Windows 7 Service Pack 1 the system reboots, and before windows comes up the registry is updated.  I get an Error C000009A applying update 128115 of 387921 (/Registry)  ....    error which stops the system from restarting.  Is there any way to get the system to restart and complete the service pack installation.  The only way I have been able to get around this error is to restore from the system restore point prior to the service pack, but I would like to apply SP1 if at all possible.  ????


Windows update and SP1 has given me the same problem and I have used this hole working day to SOLVE it.

Windows 7 was not bootable. Windows 7 safe mode was not bootable, - stopping at classpnp.sys.  I used the command prompt from rescue disk and Linux(!) to fix it.  And then some important reading / tips on this forum.

Error message at boot:

    Error C000009A applying update operation 109544 of 262832 (registry\ma...   (no more place on screen)

After a couple of failed reboots I tried a system restore from Windows rescue disk, but windows update has somehow erased all my restore point !!! (Argh)

Then I looked in the log file c:\windows\winsxs\poqexec.log and found a reference to the error: (obs this folder has some 70.000+ files)

1cbd36fd5eb05f3: 74c, c000009a, 1abe7, 0, SetKeyValue ;\Registry\Machine\Software\Microsoft\Windows\CurrentVersion\SideBySide\Winners\amd64_microsoft-windows-e..atibility.resources_31bf3856ad364e35_pt-pt_0b9032dad0ee6ed8\6.1, 6.1.7600.16385, , AQ===

Then I tried to add this key to the registry using regedit from command prompt after booting to rescue disk.  But repeated boots showed that registry didn't take / save my added key. (Strange, - I should be able to change the registry form the rescue disk, or?)

Next step was to boot a Linux live CD (Mandriva)  to browse the windows system disk.

This way I found the c:\windows\winsxs\pending.xml file (99 MB) and could open it in kwrite (in linux).  I search for  "atibility.resources_31bf3856ad364e35_pt-pt". Found that in line 114.808 (of over 300.000 lines).  Add a ! after < to make this xml line a comment.  Saved the file. Rebooted and .. yes .., windows 7 updated some files, rebooted 2 times and then started as normal.

I'll guess MS has created a lot of angry people today!!!

The  amd64_microsoft-windows-e..atibility.resources_... file is probably related to

a) ATI/AMD Graphics Cards (as in my system)

b) Windows MUI system (Multilingual User Interface) in windows 7 ultimate.

    pt-pt is a code for some language.  (Not mine, I am from Norway, NO.)


on Windows 7 ultimate (again)


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Question Info

Last updated April 23, 2020 Views 12,347 Applies to: