Critical System driver is missing or corrupt. Automatic repair fails.

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  1. Posts : 35
    Windows 10 Pro 64bit
    Thread Starter
       #11

    Yes i ran on D drive.
    Results of above commands.

    Attachment 170075

    Performing the tasks posted by Vijay now.
      My Computer


  2. Posts : 35
    Windows 10 Pro 64bit
    Thread Starter
       #12

    Performing these tasks mentioned by Vijay, I get different results than what he posted.

    I get 'Total identified Windows installations: 1, instead of 0

    and the export command 'The store export operation has failed. The requested system device cannot be found.'

    Should i still continue ?
      My Computer


  3. Posts : 39,955
    windows 10 professional version 1607 build 14393.969 64 bit
       #13

    In command prompt type: bcdedit | find "osdevice"
    For the drive with the partition type the drive letter for example C: or D:
    Then type dir
    The proper drive would display: perflogs, program files, program files (x86), users, windows, etc
      My Computer


  4. Posts : 35
    Windows 10 Pro 64bit
    Thread Starter
       #14

    e: drive has all the perflogs, program files, program files (x86), users, windows, etc. so changed the command to bcdedit /export e:\bcdbackup
    but it still gives...
    'The store export operation has failed. The requested system device cannot be found.'
      My Computer


  5. Posts : 39,955
    windows 10 professional version 1607 build 14393.969 64 bit
       #15

    Which steps did you perform in the link that ztucker posted?

    If that does not work then he may have other options for you to try.

    If the above does not work then you can try the registry repair.
      My Computer


  6. Posts : 35
    Windows 10 Pro 64bit
    Thread Starter
       #16

    just steps 1 to 4
      My Computer


  7. Posts : 35
    Windows 10 Pro 64bit
    Thread Starter
       #17

    theres no boot folder on e:\
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  8. Posts : 39,955
    windows 10 professional version 1607 build 14393.969 64 bit
       #18

    The following command scans integrity of all protected Windows system files and repairs files with problems when possible.


    Code:
    Sfc /Scannow /OFFBOOTDIR=D:\ /OFFWINDIR=D:\Windows
    sfc /scannow /offbootdir=f:\ /offwindir=f:\windows




    Please replace partition letter D: with Windows installed partition letter. When computer boots into Windows Recovery Environment (WinRE) environment the drive letter assign to Windows partition may not be C: drive letter because Windows 7, 8 , 8.1 and 10 creates a separate system partition when it's installed from scratch. The system partition contains boot files WinRE assigns the system partition the C: drive letter and the Windows installed partition will be assign any other drive letter usually D: drive letter is assign to Windows installed partition. The Bcdedit /enum | find "osdevice" command can be use to find out the drive letter of the Windows installed partition the output of the Bcdedit command is similar to this osdevice partition=D:. The drive letter after partition= is the drive letter of the Windows partition.



    SFC /SCANNOW : Run in Command Prompt at Boot - Windows 7 Help Forums
    Last edited by zbook; 29 Dec 2017 at 21:41.
      My Computer


  9. Posts : 35
    Windows 10 Pro 64bit
    Thread Starter
       #19

    ok the sfc completed and the results are..

    Attachment 170082
      My Computer


  10. Posts : 39,955
    windows 10 professional version 1607 build 14393.969 64 bit
       #20

    Overnight try the sfc command again in case these steps do not fix it.

    Post an image of the results for these commands:

    bootrec /scanos

    bcdedit /enum

    Post images as you progress in these steps:

    1) boot to the Windows 10 iso
    2) it may take 5 minutes displaying the windows icon
    3) Use the default settings for language, time, currency, and keyboard
    4) click next
    5) In the left lower corner click Repair your computer
    6) click troubleshooting
    7) click startup repair (it is expected to fail)
    8) click system restore (it is expected to fail)
    9) click command prompt
    You should see a pop up with title bar: Administrator: X:\windows\system32\cmd.exe
    This is the registry backup method:
    For each step you must see sizeable file sizes for this to work.
    If you see zeros the method will fail.
    The command: dir
    will be used each step to make sure you are in the proper location and check the size of the files
    10) type: C:
    11) dir
    12) type: D:
    13) dir
    Choose the C: or the D: drive to proceed. It should be the windows drive and not the USB drive.
    14) type: bcdedit | find "osdevice"
    This should display the location of the partition and in most cases is the location of the affected drive.
    For this post I will use C: however you should pick the drive letter that you found that has the windows files on your computer.
    The proper drive will display: perflogs, program files, program files (x86), users, windows, etc
    15) type or copy and paste: cd \windows\system32\config
    It should display: C:\windows\system32\config>
    16) type: dir
    It should display: bbi, bcd-template, components, default, drivers, elam, sam, security, software, system, vsmidk, journal, regback, systemprofile txr, etc.
    All of the file sizes should be sizeable. If it displays zeros then abort.
    Make a new directory and name it backup or something similar.
    17) type: MD backup
    Copy all of the files into this new directory.
    18) type or copy and paste: copy *.* backup
    It should now display: bbi, bcd-template, components, default, drivers, elam, sam, security, software, system, vsmidk indicating the files were copied.
    Change the directory to regback
    19) type: cd regback
    It should now display: c:\windows\system32\config\regback>
    20)type: dir
    It should display: default, sam, security, software, system etc
    All of these files must be sizeable. If it displays zeros then abort.
    21) type or copy and paste: copy *.* ..
    It should now display:
    DEFAULT
    Overwrite ..\default? (yes/no/all):
    22) type: a
    It should now display: sam, security, software, system and that the files were copied.
    23) type: exit
    24) click turn off your PC
      My Computer


 

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