Update KB2726535(x64), Error 0x80070490

You have a number of problems in the CheckSUR report - all Watchlist errors - which I'll post a fix protocol for a bit later.
Here's the list, for reference.

Code:

Checking Package Watchlist
(f) CBS Watchlist Package Missing 0x80070002 Microsoft-Windows-Client-Features-Package~31bf3856ad364e35~amd64~~0.0.0.0 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Package Missing 0x80070002 Microsoft-Windows-Server-Features-Package~31bf3856ad364e35~amd64~~0.0.0.0 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Package Missing 0x80070002 Microsoft-Windows-ServerCore-Package~31bf3856ad364e35~amd64~~0.0.0.0 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
Checking Component Watchlist
(f) CBS Watchlist Component Missing 0x80070002 amd64_microsoft-windows-consolehost_31bf3856ad364e35_0.0.0.0_none_f454588202a1731f Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 amd64_microsoft-windows-kernel32_31bf3856ad364e35_0.0.0.0_none_13b6767256d3361a Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 amd64_microsoft-windows-kernelbase_31bf3856ad364e35_0.0.0.0_none_a6fb0984b51bbe06 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 amd64_microsoft-windows-minkernelapinamespace_31bf3856ad364e35_0.0.0.0_none_8aaa81277c57a0a8 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 amd64_microsoft-windows-minkernelapinamespace_31bf3856ad364e35_0.0.0.0_none_8aaa81277c57a0a8 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 amd64_microsoft-windows-minkernelapinamespace_31bf3856ad364e35_0.0.0.0_none_8aaa81277c57a0a8 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 amd64_microsoft-windows-winsrv_31bf3856ad364e35_0.0.0.0_none_367727d39cdce317 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 amd64_microsoft-windows-wow64_31bf3856ad364e35_0.0.0.0_none_e81e593ad7d6df35 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 wow64_microsoft-windows-kernel32_31bf3856ad364e35_0.0.0.0_none_1e0b20c48b33f815 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 wow64_microsoft-windows-kernelbase_31bf3856ad364e35_0.0.0.0_none_b14fb3d6e97c8001 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 wow64_microsoft-windows-winsrv_31bf3856ad364e35_0.0.0.0_none_40cbd225d13da512 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 wow64_microsoft-windows-wow64_31bf3856ad364e35_0.0.0.0_none_f273038d0c37a130 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 x86_microsoft-windows-minkernelapinamespace_31bf3856ad364e35_0.0.0.0_none_2e8be5a3c3fa2f72 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 x86_microsoft-windows-minkernelapinamespace_31bf3856ad364e35_0.0.0.0_none_2e8be5a3c3fa2f72 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
(f) CBS Watchlist Component Missing 0x80070002 x86_microsoft-windows-minkernelapinamespace_31bf3856ad364e35_0.0.0.0_none_2e8be5a3c3fa2f72 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Package registry presence failed, possibly an orphaned package on package watchlist
Checking Packages
(f) CBS Registry Error 0x00000002 Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 Microsoft\Windows\CurrentVersion\Component Based Servicing\Packages\ Failed to open store sub key

Ok - we'll have to do this in least at two parts, because of the complexity of it.

First, please back up the registry - create a System Restore Point,

BE CAREFUL! MISTAKES IN THE REGISTRY CAN BREAK YOUR INSTALL COMPLETELY. If you do not understand an instruction, ASK first. If you get an unexpected prompt ASK!

Open Regedit and navigate in the left pane to the

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing
key
right-click on the Key and select Export - call the file backupnp.reg

right-click on the Key, and select Permissions
Click on the Advanced button
Click on the Owner tab
highlight the Administrators entry in the list, and put a tick in the 'Replace owner.....' box
Click Apply (NOT OK!)
Click on the Permissions tab
Highlight the Administrators entry in the list, and click Edit
Put a tick in the Full Control/Allow box, and click OK
Click OK again and exit Regedit

Now open an Elevated Command Prompt, and run the commands in the box - use copy/paste (instructions at the end)

Code:

REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\PackageDetect\Microsoft-Windows-Client-Features-Package~31bf3856ad364e35~amd64~~0.0.0.0" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2" >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\PackageDetect\Microsoft-Windows-Server-Features-Package~31bf3856ad364e35~amd64~~0.0.0.0" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2" >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\PackageDetect\Microsoft-Windows-ServerCore-Package~31bf3856ad364e35~amd64~~0.0.0.0" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2" >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\amd64_microsoft-windows-consolehost_31bf3856ad364e35_0.0.0.0_none_f454588202a1731f" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\amd64_microsoft-windows-kernel32_31bf3856ad364e350.0.0.0_none_13b6767256d3361a" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\amd64_microsoft-windows-kernelbase_31bf3856ad364e35_0.0.0.0_none_a6fb0984b51bbe06" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"*
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\amd64_microsoft-windows-minkernelapinamespace_31bf3856ad364e35_0.0.0.0_none_8aaa81277c57a0a8" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\amd64_microsoft-windows-winsrv_31bf3856ad364e35_0.0.0.0_none_367727d39cdce317" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\amd64_microsoft-windows-wow64_31bf3856ad364e35_0.0.0.0_none_e81e593ad7d6df35" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"*" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\wow64_microsoft-windows-kernel32_31bf3856ad364e35_0.0.0.0_none_1e0b20c48b33f815" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\wow64_microsoft-windows-winsrv_31bf3856ad364e35_0.0.0.0_none_40cbd225d13da512" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\wow64_microsoft-windows-kernelbase_31bf3856ad364e35_0.0.0.0_none_b14fb3d6e97c8001" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\wow64_microsoft-windows-wow64_31bf3856ad364e35_0.0.0.0_none_f273038d0c37a130" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\ComponentDetect\x86_microsoft-windows-minkernelapinamespace_31bf3856ad364e35_0.0.0.0_none_2e8be5a3c3fa2f72" /v "Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2"* >>%USERPROFILE%\DESKTOP\WATCHNP.LOG

This will create a new file on your desktop 'WATCHNP.LOG' - please attach that file to your reply


Here are some instructions to make life easier :)
1) To open an Elevated Command Prompt Window (the ECP window), click on Start, All Programs, Accessories – then right-click on Command Prompt, and select Run as Administrator. Accept the UAC prompt.
2) To run the commands easier, highlight the block of commands, and right-click on the highlight – select Copy. In the CP Window, click on the black/white icon at top left – select Paste. The commands will run but may not complete the last command, so hit the Enter Key once.
3) To copy the results... click on the Black/White icon in the top left, and select Edit... 'Select All', and hit the Enter key - then use Ctrl+V or r-click+Paste to paste it into your response.

Ouch - that means that you have some serious problems!
Please Cancel out and exit Regedit while I think how best to proceed.

The big problem here is that there could be thousands of subkeys present, and only one needs to be wrong to give that error.
I did test that sequence in my (updated) VM before posting it - and it worked without a problem.
We may be able to work around it if the problem is confined to sonly some of the subkeys.....

Open Regedit and navigate in the left pane to the

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\PackageDetect
key
right-click on the Key and select Export - call the file backupnp2.reg

right-click on the Key, and select Permissions
Click on the Advanced button
Click on the Owner tab
highlight the Administrators entry in the list, and put a tick in the 'Replace owner.....' box
Click Apply (NOT OK!)
Click on the Permissions tab
Highlight the Administrators entry in the list, and click Edit
Put a tick in the Full Control/Allow box, and click OK
Click OK again and exit Regedit

I suspect that the problem lies with the entries in the
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\Packages
subkey
Please navigate to that, and report the current owner, and the permissions for all the entities listed.
Then navigate to the
Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2
subkey
and do the same for that

I've asked for some help with this - that error is going to block anything we try and do from within Windows, and I'm not sure of the best way to approach it.

I may have a way to do it - it depends on how badly the subkey is messed up.

Please boot to the Repair Environment - reboot your machine and start tapping the F8 key to bring up the advanced boot options (where you'd normally select Safe Mode)
Select 'Repair your Computer'

Log in as your normal administrator account
Choose the option to open a Command Prompt
at the prompt type
REGEDIT
and hit the Enter key - Regedit should open up
Highlight the HKEY_LOCAL_MACHINE entry in the list in the left pane and right-click on it
Select 'Load Hive'
Navigate to the Windows folder in your normal install (careful!- it may not be where you think it is!) and then to
<drive>:\Windows\System32\config\SOFTWARE
and highlight the SOFTWARE
Click Open
in the popup box, Enter MODH and click OK

You'll see that the new Key is created in the list under HKEY_LOCAL_MACHINE
Now navigate to
HKEY_LOCAL_MACHINE\MODH\\Microsoft\Windows\CurrentVersion\Component Based Servicing\Packages

In there, find the Package_2_for_KB2567680~31bf3856ad364e35~amd64~~6.1.1.2 entry and attempt to delete it.

make a note of any error messages.

Now go back to the HKEY_LOCAL_MACHINE\MODH key and highlight it
In the Menu Bar, click on File, then 'Unload Hive' - this saves any changes you've managed to make.
Close Regedit, and close the Command Prompt window, and reboot.

post back with your results.