A Windows workstation displays the error message 'Boot Configuration Data for your PC is missing or contains errors' upon powering on. A technician needs to manually repair the boot records and rebuild the BCD store using the Windows Recovery Environment (WinRE) Command Prompt. In which order should the technician execute these troubleshooting steps to resolve the boot failure?
- 1Boot the workstation using Windows Installation Media and select Command Prompt under Advanced Options.
- 2Execute bootrec /fixmbr to overwrite and repair the Master Boot Record on the system drive.
- 3Execute bootrec /fixboot to write a new boot sector to the active system partition.
- 4Execute bootrec /scan-os to scan connected storage drives for compatible Windows installations.
- 5Execute bootrec /rebuildbcd to recreate the Boot Configuration Data store and add the detected Windows installation.
Answer
The proper sequence starts with accessing the WinRE Command Prompt via installation media, running bootrec /fixmbr to repair the MBR, running bootrec /fixboot to update the boot sector, executing bootrec /scan-os to detect Windows installations, and finally running bootrec /rebuildbcd to construct a fresh BCD store.
To repair a corrupt BCD file and bootloader issue, the technician must first gain command-line access via WinRE media. Next, core boot infrastructure must be repaired in order: fixing the MBR code, writing a clean volume boot sector, scanning for unlisted Windows OS installations, and finally executing the BCD rebuild operation to write valid entries back to disk.
Step-by-Step Solution
Key Concept
Rebuilding BCD and fixing boot structures using bootrec utility in WinRE