easyMultiple Choice
220-1102 Practice Question: After installing a new application, a user's…
After installing a new application, a user's Windows 10 system fails to boot and displays a 'Bootmgr is missing' error. Which command-line tool should you use from the Windows Recovery Environment to repair the boot configuration?
⚠ Common exam trap
CompTIA often tests the distinction between file system repair (chkdsk) and boot configuration repair (bootrec), leading candidates to mistakenly choose chkdsk when the error is clearly a boot manager issue.
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
The 'Bootmgr is missing' error indicates that the Boot Manager (bootmgr) is corrupted or the Boot Configuration Data (BCD) is damaged. The bootrec command, specifically with the /FixBoot, /FixMbr, and /RebuildBcd switches, is designed to repair the boot configuration and restore the boot manager from the Windows Recovery Environment.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
diskpart
Why it's wrong here
Diskpart partitions and manages volumes; it does not write boot configuration data, so the missing Bootmgr remains. It tempts because boot repair sometimes requires marking a partition active, which is the correct use when the active flag, not the BCD store, is the fault.
- ✓
bootrec
Why this is correct
bootrec rebuilds and repairs the boot configuration data and master boot record from the Windows Recovery Environment, directly resolving the 'Bootmgr is missing' error described in the stem. It targets the boot configuration store rather than file-system or disk-partition corruption.
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sfc /scannow
Why it's wrong here
sfc /scannow repairs protected Windows system files, not the boot configuration data store, so it cannot restore a missing Bootmgr. It is tempting because it is the familiar recovery-console repair command, and would be correct when system files are corrupted or missing while the boot configuration itself remains intact.
- ✗
chkdsk /f
Why it's wrong here
Chkdsk verifies and repairs disk and file-system structures; it cannot recreate missing boot configuration entries. It tempts because boot failures often stem from disk errors, making chkdsk the correct choice when bad sectors or file-system corruption, not missing Bootmgr, cause the fault.
Go deeper
Related to this question
Learn chapter
Data Destruction and Disposal
Key term
Recovery
Recovery is the process of restoring systems, data, and operations after a security incident, failure, or disaster to return to normal functioning.
Key term
Windows
Windows is a family of operating systems developed by Microsoft that manages computer hardware and software, providing a graphical user interface for users to interact with their devices.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.