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220-1201 Practice Question: A user complains that their external hard drive…
A user complains that their external hard drive is not showing up in File Explorer, but it appears in Device Manager as a connected device. What is the most likely 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
✓
The drive does not have a drive letter assigned.
This question tests troubleshooting storage recognition issues. When a device appears in Device Manager but not File Explorer, it often means the drive lacks a drive letter or has a partition issue.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The USB port is faulty.
Why it's wrong here
A faulty USB port, whether due to physical damage, power delivery issues, or internal controller malfunction, would fundamentally prevent the operating system from detecting the connected device. In such a scenario, the external hard drive would not enumerate successfully and would therefore be entirely absent from Device Manager. The system would not even register an attempt to connect a device, making this an issue of complete non-recognition.
- ✗
The drive needs a new driver.
Why it's wrong here
External hard drives typically rely on the universal USB Mass Storage Device driver, which is natively integrated into modern operating systems. If a specific driver were missing, corrupted, or incompatible, the device would likely appear in Device Manager, but with an error indicator such as an exclamation mark or as an "Unknown Device." However, the drive itself would still be listed, indicating a driver-related issue rather than complete invisibility.
- ✓
The drive does not have a drive letter assigned.
Why this is correct
For an external hard drive to be accessible and visible within File Explorer, it must have a unique drive letter (e.g., D:, E:) assigned to its primary partition. If the drive is physically connected and detected by the system, appearing in Disk Management, but lacks a drive letter, it will not be displayed or usable by the operating system or user applications via File Explorer. This common configuration issue is easily resolved by manually assigning a letter using Disk Management.
- ✗
The file system is corrupted.
Why it's wrong here
A corrupted file system, such as NTFS or exFAT, means the operating system cannot properly interpret the logical structure of data on the drive. While this would prevent access to files and might cause the partition to appear as "RAW" or "unallocated" in Disk Management, the drive itself would still be detected and listed in Device Manager. The issue lies with the logical organization of data, not the physical connection or the basic hardware recognition.
Go deeper
Related to this question
Learn chapter
Mobile Device Types and Features
Key term
Device Manager
Device Manager is a built-in Windows tool that shows you all the hardware connected to your computer and lets you manage the drivers that make that hardware work.
Key term
Direct-attached Storage
Direct-attached Storage (DAS) is a storage device connected directly to a computer or server without going through a network.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1201 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 220-1201 exam.