SK0-005 troubleshooting Practice Question
After applying a Windows security patch, a server fails to boot and displays 'Bootmgr is missing'. The server is UEFI-based. Which of the following is the MOST efficient way to resolve the 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
✓
Use the recovery environment to repair the boot loader.
Option D is correct because the error indicates boot loader corruption, and the recovery environment can repair it without reinstalling the OS or replacing hardware. Option A: chkdsk checks disk errors, not boot loader integrity. Option B is overly destructive and time-consuming. Option C: BIOS reset does not affect UEFI boot entries or file system boot loader files.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use the recovery environment to repair the boot loader.
Why this is correct
Tools like bootrec /fixboot in the recovery environment are specifically designed to fix boot manager issues on UEFI systems.
- ✗
Reset the BIOS to factory settings.
Why it's wrong here
UEFI firmware reset does not restore a missing boot manager file on the EFI system partition.
- ✗
Replace the hard drive and restore from backup.
Why it's wrong here
This is excessive; the drive is not necessarily failed, only the boot loader needs repair.
- ✗
Boot from the installation media and run chkdsk.
Why it's wrong here
chkdsk repairs file system errors, but 'Bootmgr is missing' points to boot loader issues, not disk corruption.
Visual reference
Go deeper
Related to this question
Learn chapter
BIOS/UEFI and Firmware Management
Key term
New Technology File System
New Technology File System (NTFS) is a modern file system developed by Microsoft that controls how data is stored, organized, and accessed on Windows-based hard drives and other storage devices.
Key term
Hard Drive Troubleshooting
Hard drive troubleshooting is the process of identifying, diagnosing, and fixing problems with a computer's storage device so that data can be saved or retrieved correctly.
About these practice questions
This SK0-005 question is part of Courseiva's 185-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed July 2026 · checked against the official CompTIA exam blueprint
This SK0-005 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 SK0-005 exam.