220-1102 Operating Systems Practice Question
A user reports that Windows Update on a Windows 10 Pro workstation has been stuck on 'Downloading updates 0%' for several hours. The technician has already run the Windows Update Troubleshooter, which reported no issues. Which command-line tool should the technician use NEXT to attempt to resolve the problem by repairing potential system file corruption affecting the update process?
⚠ Common exam trap
The trap here is that candidates often jump to SFC as the first repair tool, forgetting that DISM must fix the component store first; the CompTIA 220-1102 exam tests the correct order of repair steps when dealing with update failures caused by corruption.
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
✓
dism /online /cleanup-image /restorehealth
The Windows Update Troubleshooter already ran without finding issues, but the update is stuck at 0%. This often indicates underlying system file corruption that the troubleshooter cannot detect. DISM with /restorehealth repairs the Windows system image and component store, which is a prerequisite for SFC to work correctly, making it the appropriate next step before running SFC.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
sfc /scannow
Why it's wrong here
System File Checker scans and repairs protected system files, but it relies on the component store being healthy. Running DISM first is typically recommended; thus sfc alone may not resolve corruption in the component store itself.
- ✓
dism /online /cleanup-image /restorehealth
Why this is correct
DISM with /restorehealth checks the component store for corruption and repairs it using Windows Update or a local source. This addresses the root cause of many Windows Update failures and is the appropriate next step after the troubleshooter.
- ✗
net stop wuauserv && net start wuauserv
Why it's wrong here
This command sequence only restarts the Windows Update service. While useful after manual cleanup of the SoftwareDistribution folder, it does not repair system file corruption and is not the next step after a clean troubleshooter result.
- ✗
wuauclt /detectnow
Why it's wrong here
The `wuauclt /detectnow` command is deprecated in Windows 10 and is essentially a legacy trigger that forces the Windows Update client to perform a detection scan. It does not repair or replace corrupted component store files, and in modern versions it often does nothing at all because detection is handled by the USO (Update Session Orchestrator) service via `UsoClient`. Since the update is stuck due to underlying system file or component store corruption—not a lack of detection attempts—invoking this deprecated switch does not address the root cause and is therefore not an appropriate next step.
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Windows Backup and File History
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.
Key term
Windows 10
Windows 10 is a personal computer operating system developed by Microsoft that combines the familiarity of Windows 7 with the modern features of Windows 8, designed to run on a wide range of devices from desktops to tablets.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1102 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 220-1102 exam.