How to recover data from inaccessible external hard drive?

By Juno | Posted to Mac Data Recovery on May 31st, 2017 |

I can't open my external hard drive when I connect it to the computer. My external hard drive stores 20GB files, some of the files are very important for me. I've tried disk partition software but still failed to export the files. I'm certain that the external hard drive is not physically damaged. How can I fix this error and get my lost data back?

How heartbreaking it could be when you found your external hard drive inaccessible. When such inaccessibility happens, the most common error messages that will prompt are "Drive is not accessible. Access is denied" and "You need to format the disk before you can use it".

Tips for data recovery from inaccessible external hard drive

Before performing data recovery, there are 3 tips for you:

  • Once your external hard drive becomes inaccessible, stop making any further operation on it as the further operation may make your data lost forever.
  • Do not format the inaccessible external hard drive as it may make your data lost forever.
  • You'd better back up all your important files in the future.

Recommended way to recover data from inaccessible external hard drive

To recover lost data, you need an assisting tool - iBoysoft Data Recovery, a professional data recovery software that can easily help you to recover data from inaccessible external hard drive, corrupted external hard drive, unrecognized external hard drive, RAW external hard drive, formatted external hard drive, recover deleted or lost files from external hard drive, etc.

Step-by-step tutorial to recover data from inaccessible external hard drive with iBoysoft Data Recovery

Step 1: Download & install iBoysoft Data Recovery and connect the inaccessible external hard drive to your computer.

Step 2: Launch iBoysoft Data Recovery and then choose the inaccessible external hard drive.

Inaccessible external hard drive data recovery

Step 3: Click "Next" button to start scanning.

Step 4: Preview the scanning results. After that, select the needed data and click "Recover" button to get them back.

Step 5: In the end, have a check to ensure all lost data have been recovered.

Aside from recovering data from inaccessible external hard drive, iBoysoft Data Recovery can also recover data from inaccessible USB flash drive, inaccessible hard drive, inaccessible memory card, inaccessible SD card, etc.

A video tutorial:

Why does an external hard drive become inaccessible?

There are many reasons that can make your external hard drive inaccessible such as sudden power outage, damaged file system, bad sectors, virus attack. Generally speaking, the reasons can be divided into file system error and hardware problem.

Juno

Juno is a technical expert @iBoysoft. She has over 5-year experience in data recovery/repair technology. She loves to write data recovery tips and tutorials.

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