How do you recover files from an external hard drive​?

External hard drives are convenient storage solutions for backing up important data. However, data loss can occur due to various reasons, such as accidental deletion, formatting errors, corruption, or hardware failures.

Section 1: Data Loss Scenarios

1.1 Accidental Deletion

One of the most common ways to lose files is by accidentally deleting them. Whether through a simple error or a misplaced drag-and-drop action, the files may still be recoverable.

1.2 Formatting

Formatting an external hard drive can lead to data loss, especially if done unintentionally. While formatting clears the file system, the data may still exist until overwritten.

1.3 Corruption

File corruption can occur due to improper disconnection, power failures, or malware. Corrupted files may become inaccessible, but recovery might still be possible.

1.4 Hardware Failure

Mechanical issues, such as head crashes or motor failures, can render an external hard drive unusable. In such cases, professional recovery services may be necessary.

Section 2: Initial Steps Before Recovery

2.1 Stop Using the Drive

Once you realize data loss has occurred, immediately stop using the external hard drive. Continued usage increases the risk of overwriting lost files, making recovery more difficult.

2.2 Check the Recycle Bin

If files were deleted, check the Recycle Bin (Windows) or Trash (Mac). If you find your files there, you can easily restore them.

2.3 Use Built-in Recovery Options

Windows

File History: If you have File History enabled, you can restore previous versions of files.

Go to Settings > Update & Security > Backup.

Select More options > Restore files from a current backup.

Previous Versions:

Right-click on the drive in File Explorer.

Select Properties > Previous Versions to see available backups.

Mac

Time Machine: If you use Time Machine, connect your drive and launch Time Machine.

Browse through backups to restore lost files.

Section 3: Software Recovery Methods

If the above methods do not work, data recovery software may help recover lost files. Here are some recommended tools:

3.1 Panda Assistant (Windows)

Panda Assistant is a powerful data recovery software designed to help users retrieve lost, deleted, or corrupted files from various storage devices, including external hard drives, USB drives, and SD cards. With its intuitive interface, Panda Assistant makes the recovery process straightforward for both beginners and experienced users.

This software employs advanced scanning algorithms to locate and restore a wide range of file types, including documents, photos, videos, and audio files. It features both quick and deep scan options, allowing users to choose the most suitable method based on their specific needs. The deep scan function is particularly effective for recovering files that may be difficult to access due to corruption or formatting.

3.2 EaseUS Data Recovery Wizard (Windows & Mac)

This powerful software can recover lost files from various scenarios.

How to Use EaseUS:

Download and install the software.

Launch EaseUS and select the external hard drive.

Click on Scan to find lost files.

After the scan, preview and select files to recover.

Click Recover to save the files to a different location.

3.3 Disk Drill (Windows & Mac)

Disk Drill offers a simple interface and effective recovery options.

How to Use Disk Drill:

Install Disk Drill on your computer.

Connect your external hard drive.

Launch the application and select the drive.

Click Search for lost data to initiate a scan.

Once completed, browse the found files and select items to recover.

3.4 TestDisk (Windows, Mac, Linux)

TestDisk is a free, open-source recovery tool designed for advanced users.

How to Use TestDisk:

Download TestDisk from the official site.

Run the program (requires command-line interface).

Select Create to log the recovery process.

Choose the external drive and select Analyze.

Follow the prompts to recover lost partitions or files.

Section 4: Professional Data Recovery Services

If software recovery methods fail or if the external hard drive shows signs of physical damage, consider professional data recovery services.

4.1 When to Seek Professional Help

Physical damage (strange noises, clicks)

Extensive data loss that software cannot recover

Critical data that requires specialized recovery techniques

4.2 Choosing a Data Recovery Service

Research: Look for reputable services with good reviews.

Certifications: Choose services with industry certifications (e.g., ISO).

Success Rates: Ask about their success rates for similar recovery cases.

Cost Estimates: Get a clear estimate before proceeding, as recovery can be expensive.

Section 5: Preventive Measures for Future Data Loss

5.1 Regular Backups

Implement a regular backup strategy using cloud services or additional external drives to prevent future data loss.

5.2 Safe Ejecting

Always safely eject your external hard drive before unplugging it to minimize the risk of corruption.

5.3 Use Antivirus Software

Regularly scan your external hard drive for malware to prevent file corruption and loss.

5.4 Monitor Drive Health

Use monitoring tools to check the health of your external hard drive. Look for signs of failure, such as increased read/write errors.

Section 6: Troubleshooting Common Issues

6.1 Drive Not Recognized

If your external hard drive is not recognized, try the following:

Check the USB port and cable for issues.

Try connecting to a different computer.

Ensure the drive is powered (if it has an external power source).

6.2 Drive Shows as Raw

If your drive appears as RAW:

Do not format it, as this will erase data.

Use recovery software to attempt to retrieve data.

6.3 Data Corruption Issues

If files appear corrupted:

Use data recovery software to recover as much data as possible.

Check the drive for errors using built-in tools (e.g., CHKDSK on Windows).