220-1102 Practice Question: A technician is troubleshooting a Windows 10…

Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

Answer analysis

Why the other options are wrong

Understanding why incorrect options are tempting is as important as knowing the correct answer.

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  bootrec /fixmbr

  This repairs the master boot record, but the error "Bootmgr is missing" often indicates a problem with the boot sector or BCD, not the MBR.

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  bootrec /rebuildbcd

  This rebuilds the Boot Configuration Data, but it is more appropriate when the BCD is missing or corrupted, not specifically for a missing bootmgr.

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  bootrec /scanos

  This scans for Windows installations and displays results but does not perform any repairs.

Technical deep dive

How to think about this question

The 'Bootmgr is missing' error specifically indicates that the Windows Boot Manager file (bootmgr) cannot be found or loaded, often due to a corrupted or incorrectly configured boot sector on the active system partition. The `bootrec /fixboot` command is designed to write a new boot sector to the system partition, which contains the necessary code to locate and load the `bootmgr` file. This command effectively repairs the initial stage of the boot process, ensuring that the system can find and execute the Windows Boot Manager, thereby resolving the 'Bootmgr is missing' error directly. It targets the specific area responsible for initiating the boot sequence and handing off control to the boot manager. While other `bootrec` options address different aspects of the boot process, they are not the primary solution for this particular error. `bootrec /fixmbr` repairs the Master Boot Record, which is a different part of the disk and typically involved in errors like 'Invalid partition table' or when a non-Windows bootloader is present. `bootrec /rebuildbcd` is used when the Boot Configuration Data store itself is corrupted or missing, which would manifest with different error messages, such as 'The Boot Configuration Data for your PC is missing or contains errors.' Finally, `bootrec /scanos` is purely diagnostic, identifying installed Windows operating systems but performing no repairs. Given the precise nature of the 'Bootmgr is missing' error, repairing the boot sector with `/fixboot` is the most direct and appropriate first step to re-establish the link to the boot manager.

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