Windows 7 Update Error 800f0900 after removing malware


  1. busterdarr
    Posts : 5
    Windows 7 Home Premium x64
       New #1

    Windows 7 Update Error 800f0900 after removing malware


    I removed tons of malware from a client's laptop. Afterwards, KB2871997 needed to install and produced error code 800f0900 after attempting installation.
    I have run SURT and SFC, as well as Tweaking All-In-One Repair tool, with no success in fixing the problem.
    My zipped CBS folder is 22 mb, so it will not upload here. I have uploaded it to one of my sites at: http://darrwebsolutions.com/CBS.zip
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  3. NoelDP
    Posts : 21,482
    Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
       New #2

    The CheckSUR results show some interesting file corruption - but the important bit is that it needs these files for repair...
    Code:
    Unavailable repair files:
 winsxs\manifests\amd64_902b1a57d59aee60f25bc95a722f516a_31bf3856ad364e35_6.1.7601.22616_none_296f64ef285fcdf2.manifest
 servicing\packages\Package_2_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.mum
 servicing\packages\Package_4_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.mum
 servicing\packages\Package_2_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.cat
 servicing\packages\Package_4_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.cat
    All the errors in the CBS.log itself relate to the above problems.

    The SFC log is clear.

    I'll post a fix protocol for the errors a little later.
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  4. NoelDP
    Posts : 21,482
    Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
       New #3

    I've uploaded a file - bdraa.zip - to my OneDrive at Noel's OneDrive
    Please download and save it.
    Right-click on the downloaded file, and select Extract all…
    Extract to the default location - which will create a new folder bdraa in the same place.
    Open this folder - there should be two folders inside it (Manifests, and Packages)

    Copy the content of the Packages folder to the folder
    C:\Windows\Temp\CheckSur\Servicing\Packages

    And the content of the manifests folder (.manifest files) into this folder:

    C:\Windows\Temp\CheckSur\Winsxs\Manifests

    Now run the CheckSUR tool again (it may take a while)

    Post the new CheckSUR.log file, and the CheckSUR.persist.log file.
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  6. busterdarr
    Posts : 5
    Windows 7 Home Premium x64
    Thread Starter
       New #4

    Thank you NoelDP. It's running, and I have to head to work. I'll update you when I return.
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  7. busterdarr
    Posts : 5
    Windows 7 Home Premium x64
    Thread Starter
       New #5

    Here are the logs you requested.
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  8. NoelDP
    Posts : 21,482
    Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
       New #6

    Odd - one of the files wasn't replaced properly.
    Code:
    Unavailable repair files:
 servicing\packages\Package_4_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.mum
 servicing\packages\Package_4_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.cat
    it looks as if the scan didn't find the proper match for some reason - this could be a hash error, or file corruption from my end.

    second scan..
    Code:
    (f) CBS MUM Corrupt 0x800F0900 servicing\Packages\Package_2_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.mum  Line 1: Eřhǁ­h4arX2
(fix) CBS MUM Corrupt CBS File Replaced Package_2_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.mum from Cabinet: C:\Windows\CheckSur\v1.0\windows6.1-7601-x64-clientcab4.cab.
(fix) CBS Paired File CBS File also Replaced Package_2_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.cat from Cabinet: C:\Windows\CheckSur\v1.0\windows6.1-7601-x64-clientcab4.cab.
(f) CBS MUM Corrupt 0x800F0900 servicing\Packages\Package_4_for_KB2922229~31bf3856ad364e35~amd64~~6.1.1.2.mum  Line 1: INDX(
    please upload the entire CBS folder again - it should have related entries to tell us what the problem is.
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  10. busterdarr
    Posts : 5
    Windows 7 Home Premium x64
    Thread Starter
       New #7

    I deleted the old CBS.zip and replaced it with the new one - http://darrwebsolutions.com/CBS.zip
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  11. busterdarr
    Posts : 5
    Windows 7 Home Premium x64
    Thread Starter
       New #8

    Thanks again, NoelDP. I decided to reformat and reinstall, after I found that the antivirus was also corrupted and wouldn't reinstall, either.
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  12. NoelDP
    Posts : 21,482
    Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
       New #9

    sounds like that may be the best longterm solution.

    Good luck with it.
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