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Difficulty: HardTroubleshooting Windows OS Startup and Boot Errors

A technician is troubleshooting a Windows 11 desktop computer configured with UEFI firmware and a GPT partitioned system drive. Upon powering on, the workstation fails to boot into the operating system and presents a blue recovery screen displaying error code 0xc000000e, indicating that the boot selection failed because a required device is inaccessible or the Boot Configuration Data (BCD) entry is missing. The technician boots the system using Windows installation media and accesses the Windows Recovery Environment (WinRE) command prompt. Which of the following commands should the technician execute first to recreate the corrupted UEFI boot loader entries on the EFI System Partition?

  1. Execute bcdboot C:\Windows to regenerate the BCD store and copy core boot environment files to the EFI System Partition.Answer
  2. B
    Execute bootrec /fixmbr from the command prompt to overwrite the Master Boot Record on the primary disk drive.
  3. C
    Execute chkdsk C: /r /f to rebuild the partition boot sector and repair damaged system initialization files.
  4. D
    Execute sfc /scannow to re-register the Windows Boot Manager executable in the system motherboard UEFI settings.

Answer

Execute bcdboot C:\Windows to regenerate the BCD store and copy core boot environment files to the EFI System Partition.
On modern UEFI systems utilizing GPT disks, boot configuration files and winload.efi reside on the hidden FAT32 EFI System Partition (ESP). The error code 0xc000000e occurs when the Boot Configuration Data (BCD) points to an invalid partition identifier or when boot entries are missing. Executing the command 'bcdboot C:\Windows' copies core system boot files directly from the Windows OS directory to the ESP and regenerates a valid BCD configuration store, enabling the system to boot properly.

Step-by-Step Solution

1
Identify system firmware and disk layout specifications.
The target system uses UEFI firmware and a GPT disk scheme, which relies on an EFI System Partition (ESP) containing winload.efi rather than a legacy MBR boot code area.
Boot recovery tools must match the underlying disk structure and firmware standard.
2
Analyze the error code symptom 0xc000000e.
Error code 0xc000000e signifies that the Windows Boot Manager cannot locate the required device object or BCD entry to initiate winload.efi.
Corrupted or missing BCD records on UEFI systems prevent successful operating system handoff during early startup.
3
Select the proper command-line tool for UEFI boot environment reconstruction.
Running bcdboot C:\Windows extracts boot environment files from the Windows image directory and writes new boot files to the EFI System Partition while rebuilding the BCD configuration.
bcdboot is the standard utility for initializing and repairing boot files on GPT/UEFI Windows systems.

Key Concept

UEFI/GPT Windows Boot Repair using BCDBoot
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Topics

Troubleshooting Windows OS Startup and Boot Errors

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