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HDD Unallocated Space Data Recovery

Updated on Sep 13, 2018 by Abby Haines to Data Recovery Solution


Are you faced with an HDD unallocated space data recovery job? Don’t worry! Here you can learn how to recover data from HDD unallocated space with EaseUS Data Recovery Wizard. Moreover, find extra help to fix HDD unallocated hard drive space without losing data!

What Can I Do to Perform HDD Unallocated Space Data Recovery

"What can I do to perform HDD unallocated space recovery to rescue my data? Recently my 2TB western digital external hard drive which is used for file storage shown as unallocated space and all that data on it became inaccessible. About 2 hours ago, I attempted to open up the drive and put it inside my computer since I no longer needed to go around with it. But the drive wasn't showing up in my computer but it was showing up in disk management. It says the whole drive was unallocated.

I didn't touch anything since I was worried I might delete all my data. so I was hoping to make it external again by placing it in the shell case, and plugging it via USB port would fix it. But it is still saying the whole drive is unallocated. Please, I do not want to lose my data."

When you are bothered by the unallocated case, you must figure out the reason first. There are many reasons that can cause this. You can see as follows:

  • The hard drive is suddenly disconnected from the power supply.
  • Partitions were created or modified incorrectly.
  • You are installing an additional hard drive.
  • Hard drive failure.
  • Virus infection.

Once you have known the reason why the HDD becomes unallocated, you can start to fix the unallocated HDD. You need to do two things. First, recover data from the HDD to avoid data loss. Second, fix the unallocated device.

1 - Recover Data from an Unallocated HDD

For average users who are not so familiar with a computer, HDD unallocated space data recovery is an unimaginable job, even they badly need to retrieve their data. But here we can tell you that HDD unallocated space recovery is possible and easy as long as you have powerful data recovery tool. EaseUS Data Recovery Wizard is our recommendation. Being a powerful and easy-to-use data recovery program, it is the best choice for you to perform HDD unallocated space data recovery.

EaseUS Data Recovery Wizard - The Best Hard Drive Recovery Software

Recover lost or deleted files, photos, audio, music, emails from hard drive effectively, easily and completely.

Supports data recovery from recycle bin, hard drive, memory card, flash drive, digital camera.

Supports to recover data for sudden deletion, formatting, lost partition, virus attack, system crash under different situations.

Steps to Perform HDD Unallocated Space Data Recovery

You can download EaseUS Data Recovery Wizard and follow the step-by-step guide to recover your photos, videos, audio files, and documents from HDD unallocated space. 

Step 1. Launch EaseUS Data Recovery Wizard.

Usually, the unallocated space is recognized as "Lost Partition" by EaseUS Data Recovery Wizard. Select the "Lost Partition" and click the "Scan" button.

Launch EaseUS Data Recovery Wizard to start HDD unallocated space data recovery  

Step 2. EaseUS Data Recovery Wizard will start a quick scan first.
After the quick scan, a deep scan will automatically start to find more data.

Scan the selected hard drive to do unallocated space data recovery

Step 3. Preview and restore lost data.
You can preview found data by file types, select found data and click "Recover" to save them to another safe spot in PC/storage device.

Complete HDD unallocated space data recovery with one click

2 - Fix Unallocated Hard Drive with CMD

  • Open Diskpart and type: list volume and hit Enter.
  • Type: select volume X and hit Enter. (X is the drive letter of your unallocated external hard drive.) 
  • Type: delete volume and hit Enter.
  • Type: list volume and hit Enter. (If Disk Management tool cannot create a new volume on it, continue the steps below.)
  • Type: select volume X and hit Enter.
  • Type: delete volume and hit Enter.
  • Type: delete volume override and hit Enter.
  • Enter Disk Management and right-click the unallocated hard drive to create a new volume and set the file system to get fix the unallocated error on the hard drive.

If you are not familiar with the CMD, you can use a free partition manager software - EaseUS Partition Master Free with its Check Partition and Create Partition features to fix the unallocated issue with ease. If you need more information, you can also refer to this post - repair the unallocated external hard drive without losing data.