By Lora / Last update May 5, 2022

Why did your partition get lost?


Help! My mobile hard drive partition is all lost, is there a quick way to get back the partition?


What have I done? I just downloaded something and then my partition got lost. How can I restore deleted partition?


Sometimes things can be undoubtedly annoying when encountering some unexpected errors or failures, especially when it comes to your partitions, on which you have been always relied to store your valuable documents and files.


No wonder bunches of users are eager to recover a partition on hard drive. Then why does a partition get lost? Reasons for it are here below.

Human errors. An inappropriate operation like needle broken of the USB connector due to the user not performing regular maintenance and preservation to the mechanical hard disk. What’s more, some other improper operations may also lead to partition loss.

Virus intrusion. Due to a virus attack, a certain partition may disappear or the hard disk may fail to be started. The reason is that the hard disk partition table is damaged. Then users need to recover partition table.

Bad sectors. Bad sectors can be listed as soft damaged sectors and physically damaged sectors. When the hard disk is formatted, some soft damaged sectors may be generated due to wear and tear, which is a software error that can be repaired; while the physically damaged sectors cannot be repaired, and data will never be written to the sector.

Power failure. A sudden power failure may the operation of your drive, and thus your partition may get lost. If the hard disk is writing data when the power is off, it will directly cause the write interruption. If it, unfortunately, happens to be in the critical part, the written part will likely become difficult to identify.

Windows update. During the Windows Anniversary Update, some of the users reported their partition loss. When the user tried to view it with a disk management tool, it was found that their hard disk partitions were shown to be unallocated.

Several factors and inappropriate operation can lead to partition loss, which is the last thing we want to encounter. So, is it possible to recover a partition on hard drive?

Is it possible to restore deleted partition on hard disk?

Firstly, let’s get to know about partition briefly. Partitions are several logically divided segments of the hard drive for better management of the computer.

Data storage is ready when the hard drive is successfully partitioned. When the Windows OS deletes a file, to ensure the efficiency and performance of the system, it does not directly erase all the data, but marks where the file is located as “deleted”.

In this way, when other data needs to be recorded in the future, it can be directly written to these sections without retaining the original ones. As long as these sections have not been written with new data, the deleted data still exists and can be restored.

How to recover a partition on hard drive?

However, it is not that easy to restore deleted partition, and improper operation is so dangerous that may cause secondary damage to the partition.

Therefore, if you want to easily recover the lost partition, we recommend you to use the professional partition recovery software - AOMEI Partition Assistant for Windows 11/10/8/7/Vista/XP.

If you are using Windows Server 2019/2016/2012. etc., you could upgrade it into Server Edition.

Ordinary users without computer expertise or operating skills can also retrieve their data through simple operations. So, how to recover a partition on hard drive? Here we offered you a tutorial to get your lost partition retrieved with this tool.

Features of AOMEI Partition Assistant software for Windows 10/8/7/Vista/XP

As a safe, versatile, and easy-to-operate partition tool to help manage users’ hard drives, AOMEI Partition Assistant software has so many outstanding features.

Appropriate for personal and home use.
Support Win 11/10/8/7/Vista/XP OS.
Embody advanced scanning algorithm.
Recover lost partitions quickly and securely.

Steps to operate AOMEI Partition Assistant software

Now don’t hesitate to follow the detailed tutorial to recover a partition on hard drive.

Download Demo Win 11/10/8.1/8/7/XP
Secure Download

Step 1.  Install and start AOMEI Partition Software on your PC.  Click “Partition Recovery Wizard”. Choose your lost or mistakenly deleted partition, then click “Next” to go on.


Step 3. Choose a scanning method. “Fast Search” is recommended for the time-saving purpose. To take a more in-depth search, choose “Full Search”. Then click “Next” to start the process.


Step 4. The lost or deleted partition will be presented in the window immediately after it is detected. Select your lost partition and click “Proceed”.


When finished, you will successfully recover a partition on hard drive. 


Circumstances of partition loss and the best way to recover a partition on hard drive have been given above. Turn to professional software like AOMEI Partition Assistant software can save you lots of time.

This compatible software can also recover HDD partitions; what's more, it can help users restore SSD partitions as well.

If you need to restore deleted data from a hard disk, choosing a good Windows data recovery tool is also a good idea. AOMEI Data Recovery for Windows can help you out with its awesome scanning methods. 

By the way, a computer without protective measures, once physically damaged,  infected, etc., whose hard disk partitions are likely to be overwritten, causing the hard disk to be locked, and then the hard disk gets unavailable, all data is sealed.

So, do remember to perform regular maintenance and preservation of your hardware and software to carefully protect your computer and data.