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컴퓨터가 USB 플래시 드라이브를 인식하지 못하는 문제 해결 방법

2025년 12월 28일 아직 댓글이 없습니다
컴퓨터가 USB 플래시 드라이브를 인식하지 못함

목차

When Your Computer Is Not Recognizing a USB Flash Drive

Few technical issues are as frustrating as plugging in a USB device and realizing your computer not recognizing USB flash drive at all. There is no pop-up, no drive letter, and no access to files. Whether you are trying to access work documents, personal photos, or important backups, a USB flash drive that suddenly becomes unreadable can cause real anxiety.

In practice, this problem is extremely common. Many users report scenarios where a flash drive not detected on any computer, even after trying different USB ports or systems. The good news is that, in most cases, the issue is not permanent and can be fixed with the right approach.

이 가이드는 다음과 같이 설명합니다. why a computer does not recognize a USB flash drive, walks you through proven troubleshooting methods, and shows 데이터를 안전하게 복구하는 방법 언제 파일 시스템 오류 또는 파티션 손실 are involved. When built-in tools are no longer enough, we will also explain why Magic Data Recovery is a reliable solution in real-world recovery scenarios.

Magic Data Recovery 다운로드

Windows 7/8/10/11 및 Windows Server 지원

Common Reasons a Computer Is Not Recognizing a USB Flash Drive

To begin with, understanding the root cause is essential before attempting any fix. Below are the most frequent reasons users encounter a computer not recognizing USB flash drive issue.

1. USB Port or Hardware Connection Problems

Sometimes the problem has nothing to do with the flash drive itself.

일반적인 상황은 다음과 같습니다:

  • Loose or damaged USB ports
  • Insufficient power from front USB ports on desktop PCs
  • USB hubs that fail to deliver stable voltage

Before assuming the drive is faulty, always test it directly on another USB port or computer. If the flash drive not detected on any computer, the issue may go deeper.

2. Corrupted or Unsupported File System

Beyond basic hardware issues, a corrupted file system is one of the top causes behind a computer not recognizing USB flash drive.

This often happens when:

  • The USB drive is unplugged without safe removal
  • A system crashes during file transfer
  • The drive is used across Windows, macOS, and Linux systems

When the file system becomes unreadable, the operating system may refuse to mount the drive entirely, making it appear invisible.

3. Missing or Damaged Partition

Another serious but common cause is partition loss.

In this case:

  • The USB drive is detected by the system
  • No drive letter appears
  • 디스크 관리 shows the space as “Unallocated”

Users often describe this situation as a flash drive not detected on any computer, even though the device itself is technically connected.

4. Outdated or Corrupted USB Drivers

From a system-level perspective, USB controller drivers play a critical role in device recognition.

Driver issues may occur after:

  • Windows 업데이트
  • System upgrades
  • Manual driver installations

When drivers malfunction, the system may fail to communicate with the USB flash drive altogether.

5. Physical Damage or Flash Memory Wear

Over time, USB flash drives are not designed to last forever.

Over time, factors such as:

  • Excessive read/write cycles
  • Exposure to heat or moisture
  • Low-quality flash memory

can cause a drive to degrade. In these cases, a computer not recognizing USB flash drive may indicate early hardware failure.

How to Fix Computer Not Recognizing USB Flash Drive: Step-by-Step Solutions

With these potential causes in mind, before moving to 데이터 복구, try the following proven solutions in order.

Solution 1: Check USB Ports and Cables

Start with the basics:

  1. Plug the USB flash drive into a different port
  2. Avoid USB hubs temporarily
  3. Try another computer if available

This quick test helps rule out simple connectivity issues.

Solution 2: Manually Detect the USB Drive (Windows)

If your computer does not automatically recognize the device:

  1. 프레스 승리 + X 를 열고 디스크 관리
  2. Look for the USB drive listed without a letter
  3. Right-click and assign a new drive letter

This method often resolves cases where the computer not recognizing USB flash drive is caused by letter conflicts.

Solution 3: Use Disk Utility on macOS

For Mac users facing a flash drive not detected on any computer scenario:

  1. 열기 디스크 유틸리티
  2. 선택 View > Show All Devices
  3. Check if the USB drive appears
  4. 실행 응급 처치 to repair errors

If Disk Utility cannot repair the drive, data recovery should be your next step.

Solution 4: Update or Reinstall USB Drivers

Windows에서:

  1. 열기 장치 관리자
  2. 확장 범용 직렬 버스 컨트롤러
  3. Uninstall the USB Mass Storage Device
  4. 컴퓨터 다시 시작

The system will automatically reinstall fresh drivers, often restoring USB detection.

When File System Errors or Partition Loss Prevent USB Recognition

At this stage, many users make a critical mistake: formatting the drive immediately. While formatting may make the USB usable again, it also erases recoverable data.

만약 computer not recognizing USB flash drive is caused by:

데이터 복구 should be performed 전에 any destructive action.

Recovering Data from an Unrecognized USB Flash Drive with Magic Data Recovery

Magic Data Recovery를 권장하는 이유

Magic Data Recovery is specifically designed for scenarios where traditional system tools fail to recognize storage devices.

It effectively addresses:

  • 손상된 파일 시스템
  • Deleted or lost USB partitions
  • Drives showing as RAW 또는 할당되지 않은

Instead of relying on the operating system to mount the drive, Magic Data Recovery scans the flash memory directly.

Magic Data Recovery의 주요 이점

The tool stands out because it:

  • Supports USB flash drives from major brands
  • Recovers files even when the drive has no letter
  • 복구 전 파일 미리 보기 허용
  • Uses read-only scanning to avoid further damage

These strengths make it more reliable than manual fixes when dealing with a flash drive not detected on any computer.

Typical Use Case Example

A common real-world scenario:

  • A USB drive is unplugged incorrectly
  • The file system becomes RAW
  • The computer no longer recognizes the device in Windows File Explorer but Recognized in Disk Management

In this situation, Magic Data Recovery can scan the drive, reconstruct the file structure, and restore documents, photos, and videos safely.

If you are looking for a more efficient and safer solution, Magic Data Recovery 를 고려할 가치가 있습니다.

Magic Data Recovery 다운로드

Windows 7/8/10/11 및 Windows Server 지원

Preventing USB Flash Drive Detection Issues in the Future

To reduce the risk of facing a computer not recognizing USB flash drive 를 다시 클릭합니다:

  • 항상 “하드웨어 안전하게 제거”를 사용하세요.”
  • Avoid using one USB drive across too many systems
  • 유지 백업 of important data
  • Replace aging flash drives proactively

Prevention is often simpler than recovery.

결론

A computer not recognizing USB flash drive problem can stem from simple port issues or serious file system damage. While basic troubleshooting resolves many cases, 파일 시스템 오류 그리고 파티션 손실 require a more careful approach.

Instead of risking permanent data loss, using a professional tool like Magic Data Recovery offers a safer and more reliable path. It addresses the root causes behind USB detection failures while preserving your valuable files.

자주 묻는 질문

1. Why is my USB stick suddenly unreadable?

Sudden unreadability is usually caused by file system corruption, unsafe removal, or power interruption during data transfer.

2. How do I manually detect a USB device?

On Windows, open Disk Management and assign a drive letter. On macOS, use Disk Utility and enable “Show All Devices.”

3. Why is my external USB not showing up?

This may be due to driver issues, a corrupted file system, or a missing partition.

4. 컴퓨터에서 플래시 드라이브를 읽게 하려면 어떻게 하나요?

Try different USB ports, update drivers, and check Disk Management or Disk Utility for unmounted drives.

5. Do USB flash drives go bad?

Yes. Flash memory wears out over time, especially with frequent read/write cycles.

6. How do I get my computer to read a flash drive?

If standard fixes fail, data recovery software can access the drive directly without formatting.

7. When I plug in my USB, nothing happens?

This often indicates driver failure, insufficient power, or severe file system corruption.

8. Why is SanDisk not being recognized?

Brand-specific drives can still suffer from corrupted firmware, file system errors, or worn flash memory.

9. Why is my USB not showing up in Finder?

Finder may hide unmounted drives. Check Disk Utility to see if the device appears but is not mounted.

에린 스미스는 Amagicsoft에서 가장 전문적인 작가 중 한 명으로 인정받고 있습니다. 지난 10년간 꾸준히 글쓰기 기술을 연마해 왔으며 수백만 명의 독자가 기술 문제를 해결하는 데 도움을 주었습니다.

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