マスターファイルテーブルとは何か？

2025年12月30日 Jason コメントを受け付けていません

Master file table issues can lead to frustrating データ損失 and inaccessibility. If you’ve ever encountered error messages like “File or directory is corrupted,” or found your files suddenly missing, the problem may lie in the MFT. This guide will explain what the Master File Table is, how it can become damaged, and—most importantly—how you can recover your data safely and efficiently.

Understanding the Master File Table: The Heart of Your File System

について マスターファイル表 (MFT) is a core component of the NTFSファイルシステム used by Windows. Think of it as a detailed index or a “file system catalog” that stores essential metadata about every file and folder on a drive—including names, sizes, timestamps, and physical location pointers. According to Microsoft’s NTFS documentation, the MFT is crucial for system stability and data accessibility. Without a healthy MFT, your operating system cannot locate or open files, even if the data is physically still present on the disk.

Common Causes of MFT Corruption

Several factors can damage the マスターファイル表, を含む：

Sudden power loss or improper shutdowns
ウイルスやマルウェアによる攻撃
Bad sectors on the storage drive
File system errors or disk write failures
Hardware malfunctions or aging drives

When the MFT is corrupted, you may experience symptoms such as missing files, inaccessible folders, “raw” drive status, or frequent system crashes.

How to Fix MFT Corruption and Recover Your Data

Before using professional tools, you can attempt some built-in Windows solutions to repair MFT-related issues.

Method 1: Use Windows CHKDSK Utility

について CHKDSKコマンド scans your drive and fixes file system errors, including minor マスターファイル表 inconsistencies.

コマンドプロンプトを管理者として開く。.
タイプ chkdsk C：/f and press Enter (replace C: をドライブ文字に置き換えてください)。.
Allow the scan to complete and restart your computer.

一方チェックディスク can resolve some logical errors, it cannot help you recover lost files and may even overwrite your data in severe corruption cases.

Method 2: Professional MFT Corruption Recovery with Magic Data Recovery

When built-in tools fail, a dedicated recovery solution like Magic Data Recovery offers a safer and more effective approach. Unlike system utilities, Magic Data Recovery works in read-only mode, ensuring it never alters your original data.

Step-by-Step Recovery Process:

1. ダウンロードとインストール Magic Data Recovery Amagicsoft公式ウェブサイトより.

Magic Data Recoveryをダウンロード

Windows 7/8/10/11およびWindows Serverをサポート

2. Launch the software and select the affected drive where the MFT is damaged.

3. Click “Search for lost data” so the tool rebuilds file structures and helps you locate your lost files.

4. Preview recoverable files—including documents, photos, videos, and more.

5. Select the items you wish to restore and save them to a different, healthy drive.

Magic Data Recovery supports NTFS, FAT, exFAT, and other file systems, making it a versatile choice for both beginners and IT professionals.

概要

Master file table corruption is a serious but solvable issue. While Windows provides basic repair options, they are often limited and risky for your data. A specialized tool like Magic Data Recovery を提供している。 reliable, safe, and efficient way to restore your files without further damage.

Don’t panic if your files seem lost—your data is not truly gone. With the right approach, you can recover what matters most.

ダウンロード Magic Data Recovery to safely scan your drive, rebuild the damaged MFT structure, and restore your inaccessible files in just a few clicks.

Magic Data Recoveryをダウンロード

Windows 7/8/10/11およびWindows Serverをサポート

よくあるご質問

Q1: What does a master file table do?

A: The Master File Table (MFT) acts as the central index of the NTFS file system. It stores critical metadata for every file and folder on a drive—such as name, size, creation date, permissions, and the physical location of the data on the disk—enabling the operating system to locate, access, and manage files efficiently.

Q2: What is the difference between NTFS and MFT?

A: NTFS (New Technology File System) is the overall file system used by Windows to organize data on a storage drive. The MFT (Master File Table) is a specific, essential component within NTFS that serves as a detailed catalog or database of all files and directories on that volume. In short, NTFS is the system, and the MFT is its core index.

Q3: How to repair a corrupt master file table?

A: You can attempt to repair minor Master File Table corruption using the Windows CHKDSK utility (chkdsk /f). However, for severe corruption or actual data loss, a professional tool like Magic Data Recovery is recommended. It can rebuild damaged MFT structures in read-only mode and recover your files safely without risking further data damage.

Q4: What is master file data?

A: "Master file data" typically refers to the actual content or records stored within a master file in a database or system context. In relation to the MFT, however, the term more accurately points to the metadata (not the file content itself) that the Master File Table stores about each file, such as its attributes, size, and location pointers.

Q5: What is the purpose of the master file?

A: The purpose of the Master File Table is to maintain a reliable and efficient index for the NTFS file system. It allows Windows to quickly locate files, manage storage space, track file attributes, and ensure file system integrity. Without a functional MFT, the operating system cannot access files even if the data physically exists on the disk.

Q6: How do you repair a damaged MFT?

A: To repair a damaged MFT, first try running chkdsk /f in Command Prompt. If the damage is severe or you have lost data, use dedicated software like Magic Data Recovery. It scans your drive, reconstructs the MFT’s logical structure, and lets you preview and recover your files to a secure location.

Q7: What is MFT used for?

A: The MFT is used for file system management and data accessibility in NTFS. It functions as a central lookup table that stores essential information about every file and directory, enabling efficient file operations such as reading, writing, renaming, and deleting, while also supporting advanced features like compression, encryption, and permissions.

Q8: Is it safe to delete MFT?

A: No, it is not safe to delete the MFT. The Master File Table is a critical system component required for the NTFS volume to operate. Deleting or damaging it will make all files on the drive inaccessible, causing data loss. You will need specialized software like Magic Data Recovery to rebuild the file system index and restore access to your files yourself.

WiKi

Jason

ジェイソンは、コンピューター・データ・セキュリティ業界で15年以上の実務経験があります。データ復旧、バックアップと復元、ファイル修復技術を専門とし、世界中の何百万人ものユーザーが複雑なデータ損失やセキュリティ問題を解決できるよう支援してきました。.

シーゲイト外付ハードディスク・ドライブが認識されない場合、通常はオペレーティング・システムがデバイスを正しく検出またはアクセスできないことを意味します。ドライブは物理的に接続されているにもかかわらず、ファイル・エクスプローラ、ディスクの管理、またはデバイス・マネージャに表示されないことがあります。このような状況がストレスになるのは当然です。しかし、慌てないでください。ほとんどの場合、データが永久に失われることはありません。この問題は通常、物理的な損傷よりも、接続の問題、ドライバの競合、ファイルシステムの破損、電源関連の障害に起因しています。原因を理解することが、安全で効果的な解決策への第一歩です。目次シーゲイト外付ハードディスク・ドライブが認識されない一般的な理由シーゲイト・ハードディスクが [...]...

マスターファイルテーブルとは何か？

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