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Tuesday, February 5, 2013

The boot selection failed

because a required device is inaccessible 
Error 0xC000000E
http://geekotic.com/2010/06/29/windows-boot-manager-y-su-capricho-con-el-status-0xc000000e/
Sometimes, the built in repair tool doesn't work. You'll have to go into the Command Prompt and work it out. As for the weird Windows directory, I'm not sure whats up with that, but for now, lets try to get into the MBR and fix that, since that appears to be the issue here (as the OS loader was not found/could not be found). With the repair CD inserted, from the list of recovery tools, select Command Prompt, and enter the following: BootRec.exe /fixmbr
If that doesn't work, you can substitute that command for the following list (i.e. run the following commands if /fixmbr did not work):
--BootRec.exe /FixBoot Writes a boot sector onto the system partition to start Windows  
--BootRec.exe /ScanOs Scans all disks for Windows installations and displays them to you.
--BootRec /RebuildBcd Scans all disks for Windows installations and prompts you to pick the ones you want to add to the BCD.
After that, restart the computer and boot from the hard drive. Hopefully, that's the end of the issue.
If you found that a bit hard to follow, there's a graphical step-by-step tutorial at http://www.winvistatips.com/fix-mbr-t116.html.
http://www.prime-expert.com/articles/b16/fix-0xC000000E-required-device-is-inaccessible.php
B16: Fix Boot Error 0xC000000E (Required Device is Inaccessible)

  • 1. Symptoms of the problem
  • 2. Normal boot sequence
  • 3. Defect in the boot sequence which leads to 'status 0xC000000E' boot error
  • 4. How to fix status 0xC000000E

  • 2. Normal boot sequence

    The rest of this article refers to Windows 7, but all information below applies to Windows Vista and Windows 8 as well.
    Normally Windows 7 boots as shown below:
    Normal boot sequence of Windows 7
    1. BIOS loads 1st sector from HDD (Master Boot Record), verifies 55 AA signature and transfers control to Master Boot Record.
    2. Master Boot Record scans partition table for active partition, then it loads 1st sector from active partition, verifies 55 AA signature, and transfers control to Boot Sector.
    3. Boot Sector loads 15 additional sectors from the beginning of disk (Volume Boot Record) and transfers control to first additional sector of VBR.
    4. Volume Boot Record loads BOOTMGR file from root directory of boot partition into the memory and transfers control to it.
    5. BOOTMGR loads Boot\BCD registry hive and displays boot menu. BOOTMGR is able to run memory test and set safe mode boot flag per explicit user request. But normally, it loads winload.exe when computer boots normally (cold startup) or winresume.exe (when computer resumes from hibernation).
    6. Winload.exe opens SYSTEM registry hive, gets list of drivers, loads NTOSKRNL.exe, loads drivers (*.SYS files) and transfers control to NTOSKRNL.exe.
    7. Winresume.exe loads memory dump from hiberfil.sys and transfers control to it.

    3. Defect in the boot sequence which leads to 'status 0xC000000E' boot error

    Defect in the boot sequence which is a reason for 'BOOTMGR is missing' error is shown below:
    Reason for status 0xC000000E
    1. BIOS loads 1st sector from HDD (Master Boot Record), verifies 55 AA signature and transfers control to Master Boot Record.
    2. Master Boot Record scans partition table for active partition. There is one active partition, so Master Boot Record loads 1st sector from active partition (Boot Sector), and transfers control to it.
    3. Boot Sector loads 15 additional sectors from the beginning of disk (Volume Boot Record) and transfers control to first additional sector of VBR.
    4. Volume Boot Record loads BOOTMGR file from root directory of boot partition into the memory and transfers control to it.
    5. BOOTMGR tries to load Boot\BCD registry hive, but BCD is corrupt or misconfigured.
    6. The rest of usual boot events does not happen.

    4. How to fix status 0xC000000E

    1) Download EBCD and burn it to CD/DVD according to the instructions, then set up your BIOS to boot from CD. You need full EBCD version to actually write changes to the disk, but it's recommended to try demo version first to make sure  there are no hardware incompatibilities.
    2) Boot EBCD:
    Fix BCD status 0xC000000E with EBCD - Main Menu
    3) Run File Manager from the main menu:
    Fix BCD status 0xC000000E with EBCD - File Manager Started
    4) Press Alt+F1 and choose your boot partition from the menu. In Windows 7 and Windows 8 boot partition has size about 100MB in size and "System Reserved" volume label. In Windows Vista separate boot partition does not exist, computer boots from system disk where Windows OS files are installed (use UP and DOWN arrow keys and ENTER to navigate the menu):
    Fix BCD status 0xC000000E with EBCD - Choosing Windows 7 boot partition
    5) Press TAB to switch input focus to the left panel, and go to Boot folder (using arrow keys UP and DOWN and ENTER to enter the folder):
    Fix BCD status 0xC000000E with EBCD - Checking non-existence of BOOTMGR file
    6) Navigate to BCD and BCD.LOG files using arrow keys, then select both files with INSERT key and press F8:
    Fix BCD status 0xC000000E with EBCD - Choosing Windows XP installation disk
    7) Press ENTER to confirm delete operation:
    Fix BCD status 0xC000000E with EBCD - Reading Windows XP installation disk
    8) Make sure that BCD and BCD.LOG files do not exist anymore. Then Press F10, ENTER to exit EBCD File Manager.
    Fix BCD status 0xC000000E with EBCD - Navigating to BOOTMGR file
    9) Choose Mount & Boot Center in the main menu:
    Fix BCD status 0xC000000E with EBCD - Restoring BOOTMGR on the system disk
    10) Wait:
    Fix BCD status 0xC000000E with EBCD - Verifying BOOTMGR is restored on the system disk
    11) Enable checkbox (checkboxes) on the intersection of the bootloader and operating system (operating systems) it should load:
    Fix BCD status 0xC000000E with EBCD - Running Mount and Boot Center from EBCD main menu
    12) Mount & Boot Center should look like below. Press OK to commit changes (BCD registry hive and corresponding log will be created from scratch at this point):
    Fix BCD status 0xC000000E with EBCD - Waiting for Mount and Boot center to initialize
    13) "Status 0xC000000E" boot problem should be fixed now. Choose 'Reboot' in the EBCD main menu:
    Fix BCD status 0xC000000E with EBCD - Status 0xC000000E problem is fixed, rebooting
    Please note: Because BCD (Boot Configuration Data) was recreated from scratch, you may need to adjust boot timeout, menu order etc from within Windows when it boots successfully.

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