Windows 7 Update Error 80070002

Ahah! I think I see what the problem is :)

Comparing it with my own registry the subkey '6.9' should actually be '6.1' - I think!

Changing it should be fairly simple (but can be dangerous - be VERY careful following these instructions!)

First, create a System Restore point
Then open Regedit, and navigate to the

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SideBySide\Winners\amd64_microsoft-windows-kerberos-adm_31bf3856ad364e35_none_5c31f57aa4e48c0a

Key and expand it (make triply certain you've got the right one - although 99% of Keys won't have a '6.9' subkey anyhow)

Highlight the 6.9 subkey and right-click on it - select Rename

change the subkey name to 6.9 and hit the Enter key - exit Regedit and reboot.

try Windows Update then - and post back with a new CBS.log and Windowsupdate.log file

Here's the error from the Windowsupdate.log...

Code:

2015-07-05 07:12:24:360  668 9f8 Setup Evaluating applicability of setup package "WUClient-SelfUpdate-ActiveX~31bf3856ad364e35~amd64~~7.6.7600.320"
2015-07-05 07:13:40:452  668 9f8 Setup WARNING: Cbs StartSession, error = 0x80070002
2015-07-05 07:13:40:452  668 9f8 Setup FATAL: Applicability evaluation for setup package "WUClient-SelfUpdate-ActiveX~31bf3856ad364e35~amd64~~7.6.7600.320" failed, error = 0x80070002
2015-07-05 07:13:40:452  668 9f8 Setup FATAL: SelfUpdate check failed, err = 0x80070002

And here's the error from the CBS.log

Code:

2015-07-05 07:13:08, Info                  CSI    00000008@2015/7/5:14:13:08.437 PopulateComponentFamiliesKey - Begin
2015-07-05 07:13:40, Error                 CSI    00000009 (F) STATUS_OBJECT_NAME_NOT_FOUND #4260145# from Windows::Rtl::SystemImplementation::DirectRegistryProvider::SysOpenKey(flg = 0, key = {provider=NULL, handle=0}, da = (KEY_READ|KEY_WOW64_64KEY), oa = @0x2ecac0->OBJECT_ATTRIBUTES {s:48; rd:NULL; on:[158]"\Registry\Machine\Software\Microsoft\Windows\CurrentVersion\SideBySide\Winners\amd64_microsoft-windows-kerberos-adm_31bf3856ad364e35_none_5c31f57aa4e48c0a\6.9"; a:(OBJ_CASE_INSENSITIVE)}, disp = Unmapped disposition: 3067528 (0x002ece88))[gle=0xd0000034]
2015-07-05 07:13:40, Error                 CSI    0000000a@2015/7/5:14:13:40.420 (F) d:\win7sp1_gdr\base\wcp\sil\merged\ntu\ntsystem.cpp(3676): Error STATUS_OBJECT_NAME_NOT_FOUND originated in function Windows::Rtl::SystemImplementation::DirectRegistryProvider::SysOpenKey expression: (null)
[gle=0x80004005]
2015-07-05 07:13:40, Error                 CSI    0000000b (F) STATUS_OBJECT_NAME_NOT_FOUND #4260144# from Windows::Rtl::SystemImplementation::CKey::OpenExistingKey(f = 0, da = (KEY_READ), oa = @0x2ecf80, key = NULL, disp = (null))[gle=0xd0000034]
2015-07-05 07:13:40, Info                  CBS    Failed to get CSI store. [HRESULT = 0x80070002 - ERROR_FILE_NOT_FOUND]
2015-07-05 07:13:40, Error                 CBS    Failed to initialize store parameters with boot drive:  and windows directory:  [HRESULT = 0x80070002 - ERROR_FILE_NOT_FOUND]

Something has apparently reset the subkey (or created a new one) back to the 6.9 value

Please open an Elevated Command Prompt, and run the following command

Code:

REG QUERY HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SideBySide\Winners\amd64_microsoft-windows-kerberos-adm_31bf3856ad364e35_none_5c31f57aa4e48c0a 
 
.

Post the results

Did I really tell you that?? ,,, from my earlier post...

change the subkey name to 6.9 and hit the Enter key - exit Regedit and reboot.

OMG - I've been staring at this screen for 12 hours almost without a break. My typos are getting beyond a joke

It should have read...

change the subkey name to 6.1 and hit the Enter key - exit Regedit and reboot.

PLease try it again - and sorry for misleading you

Nope - it was originally 6.9 - it should be 6.1

Interesting - I suspect that the subkey must be corrupt (although it looks OK in my copy, that may be because of the Export process it went through).
Can you delete the 6.9 subkey instead of renaming it?