- A
bootrec /fixmbr
Why wrong: This rewrites the master boot record, which addresses MBR corruption but not the BCD store.
- B
bootrec /fixboot
Why wrong: This writes a new boot sector, which may help if the boot sector is corrupt but does not rebuild the BCD.
- C
bootrec /rebuildbcd
This command rebuilds the BCD store, directly fixing the 'Bootmgr is missing' error.
- D
sfc /scannow
Why wrong: sfc /scannow repairs system files but cannot be run from the recovery environment without additional steps, and does not fix boot configuration.
Question 555 of 750
220-1202 Windows Command-Line Tools Practice Question
This 220-1202 practice question tests your understanding of windows command-line tools. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A technician is troubleshooting a Windows 10 system that fails to boot with a 'Bootmgr is missing' error. They need to repair the boot configuration data (BCD) from the Windows Recovery Environment. Which command should they use?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"which command"Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
bootrec /rebuildbcd
The 'Bootmgr is missing' error indicates that the Boot Configuration Data (BCD) store is corrupted or missing. The `bootrec /rebuildbcd` command scans all disks for Windows installations and allows you to rebuild the BCD store from scratch, which directly resolves this issue. In contrast, `bootrec /fixmbr` and `bootrec /fixboot` repair the master boot record and boot sector, respectively, but do not rebuild the BCD store.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
bootrec /fixmbr
Why it's wrong here
This rewrites the master boot record, which addresses MBR corruption but not the BCD store.
- ✗
bootrec /fixboot
Why it's wrong here
This writes a new boot sector, which may help if the boot sector is corrupt but does not rebuild the BCD.
- ✓
bootrec /rebuildbcd
Why this is correct
This command rebuilds the BCD store, directly fixing the 'Bootmgr is missing' error.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
sfc /scannow
Why it's wrong here
sfc /scannow repairs system files but cannot be run from the recovery environment without additional steps, and does not fix boot configuration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse `bootrec /fixboot` with repairing the boot configuration data, but `fixboot` only repairs the boot sector, not the BCD store, which is the actual cause of the 'Bootmgr is missing' error.
Detailed technical explanation
How to think about this question
The BCD store is a registry-like database located at \Boot\BCD on the system partition (or EFI System Partition on UEFI systems) that contains boot configuration parameters. The `bootrec /rebuildbcd` command enumerates all disks for Windows installations, then prompts the user to add each found installation to the BCD store, effectively recreating the boot menu entries. In a real-world scenario, if the BCD store is missing or corrupted due to a failed update or disk error, this command is the only way to regenerate it without manually creating entries via `bcdedit`.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1202 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Visual reference
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Windows Command-Line Tools — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1202 question test?
Windows Command-Line Tools — This question tests Windows Command-Line Tools — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: bootrec /rebuildbcd — The 'Bootmgr is missing' error indicates that the Boot Configuration Data (BCD) store is corrupted or missing. The `bootrec /rebuildbcd` command scans all disks for Windows installations and allows you to rebuild the BCD store from scratch, which directly resolves this issue. In contrast, `bootrec /fixmbr` and `bootrec /fixboot` repair the master boot record and boot sector, respectively, but do not rebuild the BCD store.
What should I do if I get this 220-1202 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
This 220-1202 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1202 exam.
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