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Problem with startup boot: error reading \Boot\BCD

    Question

  • I am using WIN7 Pro 64 bit and I made a couple of dumb errors which I now do not know how to fix.

    While trying to create a virtual hard drive, I think I inadvertently created a reserved space on my main C:\ partition which in the process, moved the boot information to that reserved space.

    Then in an effort to get rid of that new reserved space, I set it to inactive which was a big mistake, as now when I attempt to start the computer, I get this error message:

    file: \Boot\BCD
    status: 0xc000000f
    info: an error occurred while attempting to read boot configuration.

    I have attempted to use the installation disk to open the repair tools but it refuses to load, even though the boot is set to read cd/dvd drive first.

    In short, I am now completely at a loss as to how to access my system to correct the problem, including using a floppy disk instead, to force my way in to get a command line prompt for possibly using this to fix the problem:

    bdchdcfg -target (drive letter of system reserved volume): merge

    Any advice will be greatly appreciated.


    • Edited by lprag Sunday, December 18, 2011 12:51 AM
    Sunday, December 18, 2011 12:48 AM

All replies

  •  

    cd windows\system32
    bcdboot c:\windows /s c:

    Sunday, December 18, 2011 5:41 AM
  • I don't think you understand the problem:

    Nothing I do enables my pc to boot from the installation disk so that I can access the repair tools and a command prompt.

    All I get after the system attempts to read the installation disk in the cd/dvd drive is::

    file: \Boot\BCD
    status: 0xc000000f
    info: an error occurred while attempting to read boot configuration.

    With my limited knowledge, I am trying to figure out how to write a rescue disk that tells the system to bypass WIN7 and boot instead in DOS to give me access to a command prompt to make the reserved space active that contains the \Boot\BCD WIN boot files, as I inadvertently set it to inactive which is the problem that is causing the boot failure.

    THUS, IS THERE ANYWAY TO WRITE A RESCUE DISK THAT WILL FORCE A BOOT INTO THE DOS SYSTEM?

    IF SO, HOW DO YOU WRITE THAT RESCUE DISK AND WHAT IS THE COMMAND LINE TO MAKE THE PRESENT INACTIVE WIN RESERVED SYSTEM VOLUME ACTIVE?

     

    Sunday, December 18, 2011 6:55 PM
  • Hello,

    Try rebuilding BCD itself.

    To do it, run bootrec /rebuildbcd. More here: http://support.microsoft.com/kb/927392



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    Sunday, December 18, 2011 8:06 PM
  • Yes BUT...

    I cannot get my pc to read the installation disk in the cd/dvd drive, in spite of it being set to the first boot drive to read.

    It just keeps telling me to reboot with the installation disk:with which I have already just rebooted.

    file: \Boot\BCD
    status: 0xc000000f
    info: an error occurred while attempting to read boot configuration.

    Therefore, I cannot access a command prompt that way.

    There is a software called rawrite which will write DOS executables to a floppy disk as an iso image that will apprarently boot a WIN7 system to DOS, as Microsoft stopped providing such bootable DOS floppy disks with WIN XP.

    http://rawwrite.findmysoft.com/

    Do you have any experience with this?

     

    Sunday, December 18, 2011 8:38 PM