Windows 8 and 8.1 Forums


Windows 8 boot error bcd

  1. #21


    Posts : 879
    Windows 10


    Quote Originally Posted by easyq View Post
    I have windows 8 installed from dvd and after a restart the pc won't boot anymore. It tells me:
    Your pc needs to be repaired
    The required boot configuration data file is missing some required information.
    File boot\bcd
    Error code 0xc0000034

    So I tried to rebuilt the bcd, used the bootrec commands , tried auto repair, tried system recovery but nothing seems to help.
    You receive the following error message:

    The Boot Configuration Data file is missing some required information.
    File:\BCD
    Error code: 0xc0000034




    And you can't refresh or reset.

    Refresh your PC: "The drive where Windows is installed is locked. Unlock the drive and try again."



    Reset your PC: "Unable to reset your PC. A required drive partition is missing."



    How do you repair the problem.

    - Boot the computer using the Windows 7/8 installation media.
    - On the first screen, press SHIFT+F10 to bring up command prompt.

    -or-

    - Boot the computer using the Windows 8 recovery USB flash drive.
    - select Troubleshoot > Advanced options > Command Prompt.

    Run the following commands at the command prompt.

    diskpart
    list volume NOTE: Note the volume letter where the Windows OS is installed.
    exit

    bcdboot X:\windows NOTE: Replace "X" with the volume letter of the Windows OS partition.

    For example, bcdboot c:\windows or bcdboot d:\windows (see screenshots below).

    If the drive letter is incorrect, you will receive the following error message: "Failure when attempting to copy boot files."





    edit:

    How to download and clean install Windows 8.1 if you have an OEM computer with UEFI firmware (BIOS) embedded Windows 8/8.1 product key. -> link
    Last edited by genet; 22 Aug 2015 at 02:35.

      My System SpecsSystem Spec

  2. #22


    Posts : 20
    Windows 8.1 64bit


    Quote Originally Posted by genet View Post
    diskpart
    list volume NOTE: Note the volume letter where the Windows OS is installed.
    exit
    When I list the volumes, my Windows installation volume is not present. Only two "volumes" are present; my DVD drive, and the USB stick I have booted from:



    However, as you can see in my screenshot above, when I list drives (not volumes), it is shown (the 59GB entry). And the file system is intact as I have been able to check it in another PC using an external enclosure.

    So, how can I use bcdboot to repair in my situation? Any advice would be greatly appreciated. Thanks in advance!

    (I have the same issue that Recovery is saying my drive is "locked", but BCD error message is 0xc0000098 rather than 0xc0000034)
    Last edited by RowanX; 29 Jan 2015 at 18:07.
      My System SpecsSystem Spec

  3. #23


    Posts : 2,690
    Windows 3.1 > Windows 10


    diskpart
    select disk 0
    list partition

    post a pic
      My System SpecsSystem Spec

  4. #24


    Posts : 20
    Windows 8.1 64bit


    Quote Originally Posted by KYHI View Post
    diskpart
    select disk 0
    list partition

    post a pic
    "There are no partitions on this disk to show". Seems a bit strange because as I say, I am able to still browse and access the files using an external enclosure.
      My System SpecsSystem Spec

  5. #25


    Posts : 2,690
    Windows 3.1 > Windows 10


    What is the disk format GPT - MBR or Dynamic

    Plug in the enclouser and run diskpart using another PC
      My System SpecsSystem Spec

  6. #26


    Posts : 20
    Windows 8.1 64bit


    Quote Originally Posted by KYHI View Post
    What is the disk format GPT - MBR or Dynamic

    Plug in the enclouser and run diskpart using another PC
    Not sure how to get diskpart to tell me that, but the program Partition Master tells me its "Basic MBR", as seen here (its "Disk 2"):

      My System SpecsSystem Spec

  7. #27


    Posts : 2,690
    Windows 3.1 > Windows 10


    if that snap shot was taken from another PC and disk one is from that PC.. Then

    The reason your other PC may not be seeing that disk is because you have the BIOS setting set to UEFI -
    you need to enable Legacy / csm support and disable secure boot.

    I have to assume that you did not setup that disk in the PC you are trying to use it with, am I correct?
      My System SpecsSystem Spec

  8. #28


    Posts : 20
    Windows 8.1 64bit


    Quote Originally Posted by KYHI View Post
    if that snap shot was taken from another PC and disk one is from that PC.. Then

    The reason your other PC may not be seeing that disk is because you have the BIOS setting set to UEFI -
    you need to enable Legacy / csm support and disable secure boot.

    I have to assume that you did not setup that disk in the PC you are trying to use it with, am I correct?
    UEFI is disabled in my BIOS. I couldnt see any option in the BIOS for "legacy/csm" or "secure boot". Might they be called something else?

    The screenshots from my "problem" PC are the blurry photos (no Prt Sc in Recovery) whereas the pixel perfect shots are from secondary PC).
      My System SpecsSystem Spec

  9. #29


    Posts : 2,690
    Windows 3.1 > Windows 10


    I have to assume that you did not setup that disk in the PC you are trying to use it with, am I correct?
      My System SpecsSystem Spec

  10. #30


    Posts : 20
    Windows 8.1 64bit


    Quote Originally Posted by KYHI View Post
    I have to assume that you did not setup that disk in the PC you are trying to use it with, am I correct?
    Not sure what you mean by "setup that disk". Let me try to explain again from the beginning:

    My PC (laptop) stopped booting, with the errors mentioned. It has one hard drive, a 64GB SSD. My first blurry photo shows diskpart's report via recovery, in this laptop with this drive.

    I then took the SSD out of the laptop, put it into an external enclosure (SATA-to-USB), and plugged it into my mum's desktop PC. My screenshot of Partition Master shows this; mum hard drive first, "Disk 1" (ignore), then my SSD, "Disk 2".

    I am trying to fix whatever is wrong with the SSD so that I can put it back into my laptop and once again boot as normal back into Windows 8.1.
      My System SpecsSystem Spec

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Windows 8 boot error bcd
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