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How to Recover External HDD Data! Delete / Format

I will introduce how to deal with such a case that I accidentally deleted the file of the external HDD, formatted it, and the data can not be found.

If you can't restore with standard Windows features, try scanning your external HDD with FastRecovery to find the data you need.

# External HDD # Data Recovery Data Recovery HDD Recovery File Recovery

8/17 Edited to

... Read more私も外付けHDDで写真フォルダを誤って削除してしまい、「データ復旧って何からやればいいの?」と焦った経験があります。結論から言うと、やるべきことは“上書きさせない”→“状況を切り分ける”→“スキャンして復元”の順番です。ここを間違えると、復旧できるはずのデータも取り戻せなくなることがあります。 まず最優先は、外付けHDDの使用を止めること。削除やフォーマット直後でも、HDD内にはデータの痕跡が残っている場合があります。ただし、その後にファイルを保存したり、動画編集の書き出し先にしたりすると上書きが進み、復元率が一気に下がります。可能なら外付けHDDを安全に取り外し、作業は別のPC内蔵ドライブで進めます。 次に「削除」なのか「フォーマット」なのか、「見えないだけ」なのかを切り分けます。削除だけなら、まずはごみ箱(PC本体側に移動しているケース)やバックアップを確認。Windowsなら“ファイル履歴”や“以前のバージョン”が残っていることがあります。見つからない場合は、ドライブレターが変わっていないか、ディスク管理で認識されているかもチェックします。接続してもデータが表示されない時は、ケーブル・別ポート・別PCで試すだけで直ることもありました。 それでもダメなら、復元ソフトで「スキャンして探す」工程に進みます。私が重視したポイントは、(1)削除したファイルを検索できる、(2)フォーマットしたHDDも対象、(3)写真・動画・文書など幅広い形式に対応、(4)復元前にプレビュー確認できる、の4つです。記事内で触れているFastRecoveryのように、外付けHDDをまとめてスキャンでき、必要なファイルを確認してから復元できるタイプは、初心者でも失敗しにくい印象でした。 作業のコツは、スキャンは時間がかかっても“深いスキャン”まで回すこと、復元先は必ず別のドライブ(PC内蔵SSDや別の外付け)にすることです。同じ外付けHDDに復元すると上書きが起きやすく、せっかく見つかったデータを壊す原因になります。 最後に、物理故障っぽい症状(異音、認識が不安定、容量が0表示、頻繁に切断など)がある場合は、無理にスキャンを繰り返さないのが安全です。何度も読み書きすると状態が悪化することがあるので、その場合は早めに専門のデータ復旧サービスの見積もりも検討しました。焦るほど操作を増やしがちですが、「止める→確認→復元」の順番を守るのが、結局いちばん近道でした。

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