SP1 installation on Windows 7 fails (Code 8024200D)

I'm sorry for answering lately but i was a little bit busy today...brother moved into new flat...
I tried some things...but no success

1.) On a computer running Windows 7 and Windows Server 2008 R2, service pack 1 installation fails with error message 0x800f0826
I checked the the permissions for the user groups 'SYSTEM' and 'Administrators' for the files usbstor.inf and Usbstor.pnf. First both user groups had already full control/access (?!) for both files and it wasn't possible for me to change the 'permit' permissions (grayed out). I could only do the 'refuse' stuff. I added the user, with which i'm logged in, to the security tab and gave him full access for both files. I tried a installation of sp1 via windows update, after a reboot, but unfortunately it wasn't successful. Afterwards i deleted the user from the security tab for both files.

PS#1: I checked through the Microsoft Management Console if the user, which i'm using, is part of the user group 'Administrators' and yes he is. I'm also checked the account type under 'system control' -> 'user accounts'. There stands 'Administrator'.

PS#2: I checked two updates for installation: SP1 x64 (KB976932) which and Defnition Update for Windows Defender (KB915597, Definition 1.165.2532.0). Installing sp1 fails but the definition was installed succesfully. I don#t know if this information is helpfully for you but i thought i should tell it.

2. Try another user from the machine
There are two users configured on the machine. The user my girlfriend is using for work and i tried to use so far. The second one is called 'Administrator' ...user group and account type is Administrator...
I ran windows update and installing sp1 fails with the same error message like before.

NoelDP said:

Kaktussoft said:

Try this: On a computer running Windows 7 and Windows Server 2008 R2, service pack 1 installation fails with error message 0x800f0826

Wrong error message - but it shouldn't hurt to try it! :)

The actual error is the first line in the snip - the rest follows on from that.
The trick is to work out which registry Key is the one that's missing. (and why CheckSUR isn't finding anything either)

Please check and see if you can find KB2667402 installed or not...

Do searches in the following folders for the string 'KB2667402' (without the quotes)

C:\Windows\Servicing\Packages
C:\Windows\System32

Is the update listed in Installed Updates?
Is it listed in the Update History? (how many times, and with what results?)

Is the update listed in Installed Updates?
The update KB2667402 is listed in installed updates.

Code:

Security Update for Microsoft Windows (KB2667402)
Program: Mircosoft Windows
Version:
Publisher: Microsoft Corporation
Installed at: 19.06.2012

Is it listed in the Update History? (how many times, and with what results?)
It's not listed. The update history also just contains entries for the days 24.01.2014 and 25.01.2014...not entries from the past.

Search in 'C:\Windows\Servicing\Packages'
see picture 'windows_servicing_packages.png'

Search in 'C:\Windows\System32'
see picture 'windows_system32.png'

Uninstall fails with Message 'An error occured. It could not be all removed uninstalled.'

I did not reboot and installed the sp1 from standalone version.

Great news...sp1 installed successfully

Ok what i did was:
I googled from the result (see 1.png) the error code 0x800f081f, i came to this site and from there to this article. I took a look into the system event log and found a entry (see error_sys_log.png).
I run an the command

Code:

dism /online /remove-package /packagename:Package_for_KB976932~31bf3856ad364e35~amd64~~6.1.1.17514

in an elevated cmd-window, like he described, and it uninstalled the package successfully. After a reboot and another run from 7601.17514.101119-1850_Update_Sp_Wave1-GRMSP1.1_DVD.iso, the sp1 was installed

I thank you for your support in these hard times :)