Errors 0x800F0900 and 0x800B0100

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  1. Posts : 10
    Windows 7 Pro x64
    Thread Starter
       #11

    NoelDP said:
    The base folder structure should be

    C:\mtsaa\<long foldername>\<longfilename>
    For completeness, here's the structure I currently have:
    Code:
    C:\Windows\system32>dir C:\mtsab /S
     Volume in drive C has no label.
     Volume Serial Number is B4DF-125D
    
     Directory of C:\mtsab
    
    08/19/2013  09:10 AM    <DIR>          .
    08/19/2013  09:10 AM    <DIR>          ..
    08/18/2013  05:13 PM    <DIR>          amd64_microsoft-windows-autochk_31bf3856ad364e35_6.1.7600.16385_none_3de8def0db722996
                   0 File(s)              0 bytes
    
     Directory of C:\mtsab\amd64_microsoft-windows-autochk_31bf3856ad364e35_6.1.7600.16385_none_3de8def0db722996
    
    08/18/2013  05:13 PM    <DIR>          .
    08/18/2013  05:13 PM    <DIR>          ..
    07/14/2009  02:38 AM           777,728 autochk.exe
                   1 File(s)        777,728 bytes
    
         Total Files Listed:
                   1 File(s)        777,728 bytes
                   5 Dir(s)   3,077,718,016 bytes free
    
    C:\Windows\system32>dir C:\Windows\winsxs\mtsab
     Volume in drive C has no label.
     Volume Serial Number is B4DF-125D
    
     Directory of C:\Windows\winsxs\mtsab
    
    08/18/2013  09:18 PM    <DIR>          .
    08/18/2013  09:18 PM    <DIR>          ..
    08/18/2013  09:18 PM    <DIR>          amd64_microsoft-windows-autochk_31bf3856ad364e35_6.1.7600.16385_none_3de8def0db722996
                   0 File(s)              0 bytes
                   3 Dir(s)   3,077,718,016 bytes free
    I've also tried running SFC with the amd64_[...]autochk[...]\ directory moved up a level (to \winsxs\amd64_[...]autochk[...]\).

    I could be missing some simple yet crucial step.

    Edit: just to make sure, it should be mtsab, not mtsaa, correct?
      My Computer


  2. Posts : 21,482
    Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
       #12

    That explains the problem with Autochek then :)

    You appear to have been xcopying the mtsab folder, rather than its content (C:\Windows\Winsxs\mtsab should not exist)
    Please review my instructions again and follow them exactly
      My Computer


  3. Posts : 10
    Windows 7 Pro x64
    Thread Starter
       #13

    Uploaded a new CBS.log.
      My Computer


  4. Posts : 21,482
    Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
       #14

    Still the same error

    Maybe it's a registry problem? - maybe it's still a file problem.....

    Please run the following commands...

    COPY C:\Windows\Winsxs\amd64_microsoft-windows-autochk_31bf3856ad364e35_6.1.7600.16385_none_3de8def0db722996 %userprofile%\desktop\mtsnp1
    REG QUERY "HKEY_LOCAL_MACHINE\COMPONENTS\DerivedData\VersionedIndex\6.1.7601.17592 (win7sp1_gdr.110408-1631)\ComponentFamilies\amd64_microsoft-windows-autochk_31bf3856ad364e35_none_e006b9b4b9af9929" /S

    Post the results.

    You'll fined that the first command put a file on your desktop - 'mtsnp1'
    Please zip it and attach it to your results as well - then I can check it against the normal file.
      My Computer


  5. Posts : 10
    Windows 7 Pro x64
    Thread Starter
       #15

    Results of commands:
    Code:
    C:\Windows\system32>COPY C:\Windows\Winsxs\amd64_microsoft-windows-autochk_31bf3856ad364e35_6.1.7600.16385_none_3de8def0db722996 %userprofil
    e%\desktop\mtsnp1
    C:\Windows\Winsxs\amd64_microsoft-windows-autochk_31bf3856ad364e35_6.1.7600.16385_none_3de8def0db722996\autochk.exe
            1 file(s) copied.
    
    C:\Windows\system32>REG QUERY "HKEY_LOCAL_MACHINE\COMPONENTS\DerivedData\VersionedIndex\6.1.7601.17592 (win7sp1_gdr.110408-1631)\ComponentFa
    milies\amd64_microsoft-windows-autochk_31bf3856ad364e35_none_e006b9b4b9af9929" /S
    ERROR: The system was unable to find the specified registry key or value.
    
    C:\Windows\system32>REG QUERY "HKEY_LOCAL_MACHINE\COMPONENTS\DerivedData\VersionedIndex\6.1.7601.17592(win7sp1_gdr.110408-1631)\ComponentFam
    ilies\amd64_microsoft-windows-autochk_31bf3856ad364e35_none_e006b9b4b9af9929" /S
    ERROR: The system was unable to find the specified registry key or value.
    HKEY_LOCAL_MACHINE\COMPONENTS\ doesn't appear to exist when looking through regedit.

    I also searched for 'autochk' using RegScanner - these are the results:
      My Computer


  6. Posts : 21,482
    Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
       #16

    The file is very definitely not being properly replaced - all hashes run on it are different to the standard.
    Somehow, you appear not to be following the proper procedure for replacement of the file.

    Please try again, and this time note the EXACT XCOPY command you are using, and post it in your reply.
      My Computer


  7. Posts : 10
    Windows 7 Pro x64
    Thread Starter
       #17

    The exact command I entered was:
    Code:
    XCOPY C:\mtsab C:\Windows\winsxs /y /i /s /v /h
    with the result "1 File(s) copied".

    For comparison, I've zipped the autochk.exe files from both the source mtsab folder and the destination folder in winsxs (files are renamed to source_autochk and destination_autochk). Perhaps the autochk.exe in the mtsab folder is the incorrect version?
      My Computer


  8. Posts : 21,482
    Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
       #18

    The destination_autocheck file is infected with a virus....
    https://www.virustotal.com/en/file/0...is/1376947283/


    Please download and install Malwarebytes Anti-malware (free version) from http://www.malwarebytes.org/products/malwarebytes_free/ - UNtick 'Enable free trial of MBAM PRO' at the end of the installation - and update it, then run a FULL Scan in your main account, and Quick scans in any other user accounts.

    Delete everything it finds
      My Computer


  9. Posts : 10
    Windows 7 Pro x64
    Thread Starter
       #19

    Ah I see, thanks. Running a scan now, I'll check back when it's done.
      My Computer


  10. Posts : 21,482
    Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
       #20

    I checked, and MBAM doesn't actually detect it (yet) - but it may find other things, including the control program that keeps reverting it.
      My Computer


 
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