EaseUS Partition Master

Partition recovery from unallocated space with EaseUS Partition Master

Step-by-step partition recovery guide teaches you how to recover partition from unallocated space in Windows 10/8/7XP/Vista/2000/2003/2008.

Free Download 

Windows 11/10/8/7100% Secure


Page Table of Contents

Updated by


Written by

Tracy King

Updated on May 09, 2024

Do partition recovery from unallocated space with EaseUS Partition Master

Recover files from unallocated space with EaseUS Data Recovery

Fix unallocated hard drive with CMD

Why is partition recovery from unallocated space necessary?

Partition recovery from unallocated space might be needed when partition is deleted or lost by accident. Delete a partition by accident might be easy to understand while how partitions can be lost automatically? Changes in your operating system, virus or spyware infections or a newly installed drive can often lead to unallocated disk space on your hard drive.

Case 1:

"Hi, my main problem is that the partition with data is now shown as unallocated. I have a 500 Seagate HDD that was mainly used as external HDD. It has 3 partitions A, B, C where A has all my data while the other two were empty. After installation of Windows 7, A and B become one unallocated space. How do I recover unallocated partition?"

Case 2:

Also, another user shows the desire of free partition recovery from unallocated space, after the description of his situation, he wrote: "PS - I understand there is partition recovery software you can buy that may be able to recover unallocated partition, but I'm looking for a charge-free one." How do we recover unallocated partition for free?

We will share a free utility to do partition recovery from unallocated space here - EaseUS Partition Master.

Free Download 

Windows 11/10/8/7100% Secure

How to do partition recovery from unallocated space with EaseUS Partition Master?

1. Check if you need to recover unallocated partition

To make sure if the partition is lost and you need to do partition recovery from unallocated space, you can check with the following steps:

1. Click on the "Start Menu" and click on "Control Panel". Select the "Administrative Tools" icon, and then select "Computer Management".

2. Click the Disk Management heading in the left frame of the next window. This will list the installed drives on your computer.

If the partition doesn't appear there, it is lost and you can initiate the above partition recovery from unallocated space process.

2. Partition recovery from unallocated space

EaseUS Partition Master Professional Edition fully supports 32-bit and 64-bit Windows business users (Windows 10/8.1/8/7/Vista/XP).

EaseUS Partition Master Server Edition works perfectly with Windows Server 2016/2008/2003 etc both 32-bit and 64-bit users. 

Download it for free, install it on your PC, activate it for partition recovery now:

Step 1. Open EaseUS Partition Master and click "Partition Recovery". Select the target disk with your lost partition and click "New Scan".

partition recovery step 1

Step 2. Wait patiently to let the software execute "Quick Scan" and "Full Scan" operation. It will mark your deleted partition as "lost" as the Status section. Select the lost partition, and click "Recover".

partition recovery step 2

You can also double click on the partition you're looking for to preview its content and click "OK" to confirm.

partition recovery step 3

Step 3. Wait patiently and click "Done" when the partition recovery process completes.

partition recovery step 4

Free Download 

Windows 11/10/8/7100% Secure

How to recover files from unallocated space with EaseUS Data Recovery

If the Partition Recovery of EaseUS Partition Master fails to recover your lost/deleted partition, how to fix unallocated hard drive without losing data? Don’t miss out on EaseUS Data Recovery - another powerful drive/partition saver. 

Step 1. Select and scan the lost partition

Launch EaseUS Data Recovery Wizard, select "Lost Partition" and click "Scan" to search for all the lost data. If there are many lost partitions, you can identify them through its partition size.

Note: Since the Windows system doesn't support the Linux file system, the Ext2 or Ext3 partition will be recognized as lost partition with no drive letter in the software. If you want to recover data from Ext2/Ext3 partition, you can follow these steps.

select the lost partition to scan

Step 2. Filter the scanned results

Because there will be a lot of scanned files, you can choose a file category for quick filtering, such as Pictures, Videos, Documents, Audio, and Others. Or if you remember the file name, you can just look it up in the search box in the upper right corner.

check all found files

Step 3. Preview and recover data from the lost partition

Before recovery, you can preview the file to make sure it is the data you need. Choose all the files you need and click "Recover" to restore them. 

recover files from lost partition

How to fix unallocated hard drive with CMD

Fixing unallocated external hard drive in Windows 10 can be easy with the two software in the previous part. Also, you can try to fix unallocated space on hard drive by using CMD. Follow the step-by-step guide:

Step 1. Press Windows + R, input CMD, and press Enter.

Step 2. Input the command we listed in each line and press Enter.

diskpart > list volume > select volume* (Choose your drive letter.) > delete volume > delete volume override 

Step 3. Create a new volume on the Disk Management, and set the file system to recover the unallocated hard drive.

How Can We Help You

About the Author

Updated by Sherly

Sherly joined EaseUS in 2022 and she has always loved writing articles and enjoys the fun they bring. She receives professional training here, focusing on product performance and other relative knowledge. She has written over 200 articles to help people overcome computing issues.

Read full bio

Written by Tracy King

Tracy became a member of the EaseUS content team in 2013. Being a technical writer for over 10 years, she is enthusiastic about sharing tips to assist readers in resolving complex issues in disk management, file transfer, PC & Mac performance optimization, etc., like an expert.

Read full bio

Product Reviews

Product Reviews

TrustScore 4.7 | 49 reviews
  • I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes. I also think the overall look and feel of EaseUS Partition Master Free makes whatever you're doing with your computer's partitions easy.

    Read More
  • Partition Master Free can Resize, Move, Merge, Migrate, and Copy disks or partitions; convert to local, change label, defragment, check and explore partition; and much more. A premium upgrade adds free tech support and the ability to resize dynamic volumes.

    Read More
  • It won't hot image your drives or align them, but since it's coupled with a partition manager, it allows you do perform many tasks at once, instead of just cloning drives. You can move partitions around, resize them, defragment, and more, along with the other tools you'd expect from a cloning tool.

    Read More

EaseUS Partition Master

Manage partitions and optimize disks efficiently

Free Download 

Windows 11/10/8/7100% Secure

Get EaseUS Partition Master

Your best companion for disk partitioning, MBR to GPT/GPT to MBR conversion,even OS migration

Free Download 

Windows 11/10/8/7100% Secure