HDD Partition Recovery | How to Restore Lost HDD Partition

You are going to learn three ways how to recover the local disk. Professional HDD and SSD partition recovery software from EaseUS helps to restore lost hard disk drive partitions and hard disk data caused by low disk drive or other problems.

Updated by Tracy King on May 20, 2024
 | Home > Partition Recovery Guides

If you accidentally delete lost hard disk partitions for unknown reasons, don't create new partitions on the unallocated space and add files into the partition. The data overwritten by new content is irrecoverable. Thus, to maximize the chance of recovering all your files, perform hard drive partition recovery as soon as possible once you've deleted a partition.

However, even if you have created a new partition and put files in it, you still have the chance to recover your lost files following the paragraphs below.

Method 1. Recover Deleted/Lost Hard Drive Partition with Software

Actually, to recover your deleted partition on the external hard drive, you only need reliable partition recovery software. EaseUS Partition Recovery is a powerful partition recovery tool that you can use to recover lost or deleted partitions. This software is designed for the HDD partition recovery. This partition recovery software has many highlights.

  • It fully supports all Windows systems, and you can restore whatever you've lost from the lost hard disk partition.
  • It will help you recover NTFS partitions lost due to accidental deletion, corrupted partition table, power failure, and bad sectors.
  • You can retrieve your precious files and partition them within minutes.

Download and run this partition recovery software to restore the lost partition.

You can use the software to scan the corrupted disk for lost partitions and then preview the files according to your needs before the recovery process.

Step 1. Run EaseUS Partition Recovery on your PC.

Select the disk or device where you lost partition(s), click "Scan" to continue.

Select disk to scan lost partition

Step 2. Wait for the scanning process to complete.

Let the program scan the selected disk and find the lost partition(s).

Scan lost partition

Step 3. Preview and restore the lost partition(s).

Double-click on the partition which is marked as "Lost" with "Good" recoverability.

Preview lost partition

Preview the content of the lost partition. Click "OK" and click "Proceed" to start restoring the lost partition.

Select found partition to restore

Step 4. Click "Recover Now" to finish the partition recovery process.

Note: If the program warns you that there is a conflict, back up the listed partition with essential data to an external hard drive first. Then execute the final operation to restore your lost partition.

Finish partition recovery

Many Windows 10/11 users have proved the efficacy of the tool. If you are interested in HDD partition recovery, share it on Facebook, Twitter, Instagram, and other social media platforms!


Method 2. How to Recover Deleted Files from Hard Drive Partition

EaseUS data recovery software will help you recover both the partition and the files on it. If you want to recover data from a deleted partition and create a new partition on the unallocated space by yourself, you can try another way to perform data recovery from lost partitions.

 Download for Win Recovery Rate 99.7%
 Download for Mac Trustpilot Rating 4.7

This tool will help you recover all the files and folders in the lost partition, namely from the unallocated space. However, unlike EaseUS Partition Recovery, it won't recover the partition for you.

Step 1. Select and scan the lost partition

Launch EaseUS Data Recovery Wizard, select "Lost Partition" and click "Search for Lost Data" 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. Choose a storage location (including cloud storage, such as OneDrive, Google Drive, etc.), and click "Save" to save your recovered files.

recover files from lost partition

Method 3. Recover Deleted/Lost Hard Drive Partition with CMD

If you lose the partition because your volume label is missing, you can recover the external HDD partition by CMD. Try to assign a drive letter to the drive and restore the lost partition.

Step 1. Press "Windows" + "S" to run the search box. Type cmd. When the command prompt appears, right-click and select "Run as administrator".

assign drive letter to recover lost partition - 1

Step 2. Type diskpart at the command prompt. Press "Enter".

Step 3. Type list volume, then press "Enter".

Step 4. Type select volume. Substitute the volume number with the number of the volume inside the <>.

Step 5. Type assign letter. Substitute the new drive letter with a new letter for the drive inside the <>.

assign drive letter to recover lost partition

Exit this window and see if you can access that partition.

Recover Lost Partition on External Hard Drive

Recover Lost Partition on External Hard Drive | Check Tutorials Here

We'll offer four tested methods with detailed tutorials to help you recover lost partitions and data successfully. Read more >>

You can refer to the article about how to recover data from deleted partitions and then follow the steps below to create a new partition.

Step 1. Right-click on "This PC" and choose "Manage".

Step 2. Go to "Disk Management".

Step 3. Right-click on the unallocated space on your hard drive and choose "New Simple Volume..."

Step 4. Then follow the New Simple Volume Wizard to specify the volume size, assign a drive letter, and format the partition...

Create New Volume in Disk Management

After creating a new partition, you can use it for data storage again. Don't forget to mark this passage by sharing it on Facebook, Twitter, or SNS.


Common Causes of Lost/Deleted Partitions

When you are faced with a lost partition, you receive this message: XX partition is missing. Why does this happen? A few factors could cause lost or deleted partitions on your hard disk or SSD.

😨Accidental Deletion

In most cases, users get their hard disk partition lost by accidentally deleting a volume in Disk Management.

🔧Partition Corruption

Another major reason for partition loss is partition table corruption. (The partition table is a system file containing critical information about the hard disk drive partitions, including the start point and endpoint of the hard disk drive partition, file system, name, size, and other important information about the partition.)

🗃️System Reinstallation

Besides, operating system reinstallation, incorrect manipulation, and virus infection may also cause partition loss issues.

When your Windows partition is lost, all your files and folders stored on the partition are lost, and you'll not be able to see any tracks of the hard disk drive partition in Windows Disk Management. Thus, how to restore lost hard disk drive partition becomes urgent.


Still curious? Click here to learn about Tips to Recover Lost Partition on Windows 10.

The Bottom Line

Accidentally deleting a volume in Disk Management happens quite often. However, what occurs more frequently is accidentally deleting data on a computer hard drive, external hard drive, USB flash drive, memory card, and other storage devices. That's why you can't miss EaseUS data recovery software, which will help rescue your data whenever you lose it.

Therefore, you can create new partitions on the unallocated space as you like after recovering the deleted files from the lost partition.

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EaseUS Partition Recovery

  • Recover lost, deleted and missing partitions
  • Support partition recovery with multiple file systems