How to Find Lost Partition in Windows 10, 11, 8, 7 (2023)

Where and how to find lost partitions? Get effective ways to recover lost partitions and data in hard drives with professional partition recovery tools.


By Lora / Updated on May 27, 2024

Share this: instagram reddit

User case: Where to find my lost partitions


“Hello! I need your help. I deleted my HDD partition through command prompt with diskpart and now I try to get it back. I used some Partition Recovery tool and found my partitions but couldn't restore because "need an activation before" (after I did the whole scan...). Where to find my lost partitions? Any help is really appreciated! Thank you for your time!”

Some users may want to perform disk partitioning via Command Prompt by themselves. However, it’s not easy for anyone because it requires the necessary knowledge. Otherwise, it could result in partition loss.

If you are experiencing this situation, there are methods below to let you know how to find lost partitions in hard drives via professional partition recovery software and recover deleted disk partitions via CMD.

Find Lost Partition

Part 1. What causes hard drive lost partitions?

Disk partitioning allows users to create several parts under one hard drive to store kinds of data. Except for disk partitioning, partition loss could be caused by other factors. Before finding lost partitions on hard drives, knowing the reasons for partition loss is also important to avoid lost/deleted partitions in the future.

A partition loss can occur as a result of a variety of cases. Here are a few of the most common reasons:

Accidental deletion. You may delete a partition unconditionally when managing the hard drive or other operations.
Repartition hard drive. When resizing the partitions, some unexpected interruptions happened.
Partition Table Loss or Damage. Partition Table is very important for listing partitions. Once it is corrupted or lost, the partitions would get lost too.
Bad Sectors. Lots of bad sectors on the partition can’t allow you to access it and computers can’t recognize the partition.
Virus Attack. If a virus or malware infects the hard drive, the partition may get lost.  

Part 2. Recover lost partitions via Disk Management

Check whether the lost partition is visible. If you see the lost partition showing “Unallocated”, you could create a new volume to recover the lost partition. If you create a new partition, the data in this partition will be erased permanently. Thus, it is advisable for you to recover your data first.

For this, we recommend a professional data recovery tool - MyRecover. With it, you can recover any data from lost partition directly and here is a simple guideline:

Step 1. Run MyRecover. Hover the mouse over the drive and click Scan to scan.

Select Partition to Scan

Step 2. During the scanning procedure, you are allowed to target or search for specific files using various filters such as SizePathDate modified, and more.

Scan Lost Data

Step 3. Select the deleted or lost files you wish to restore. Press the "Recover x files" button to begin the recovery process from any partition.

Select Deleted Images to Recover

If the lost partition appears in Device Manager and Disk Management but not in File Explorer, the partition table/boot sector is most likely missing or corrupt. Therefore, the partition seems to be lost, and the data is unavailable.

How to find lost partitions? Follow the steps below to solve how to find the lost partition in Disk Management and restore it.

Step 1. Right-click the Start icon and select “Disk Management”.

Step 3. Right-click the lost partition and select “New Simple Volume”.


Step 4. Click on “Next” > “specify the volume size”.  Select “Assign the following drive letter” and select a letter. Click “Next”.


Step 5. Select “Format this volume with the following settings”. And the new partition will be available in File Explorer.



The data on the lost partition would be permanently deleted. If you select “Do not format this volume”, the lost partition will become a RAW partition. It would be best if you had professional Windows data recovery software to recover data from RAW partitions.

Part 3. Recover lost partitions with CMD

How to recover lost partitions with CMD? If your partition is lost due to a missing volume label, drive letter, or partition name, you can try this lost partition recovery method.

Step 1. Run CMD as administrator on your Windows PC.

Step 2. Input diskpart> press Enter.

Step 3. Input the following commands in turn, and please  press the Enter key each time.

● list disk

● select disk 2 (Replace 2with the number of the hard drive that contains the lost partition.)

● list volume

● select volume 4 (Replace 4 with the number of the lost partitions)

● assign letter=g (Replace g with an available drive letter).

CMD Recover Lost Partition

Step 4. Exit this window and check if you can find your lost partition now.

Part 4. Recover lost partitions via partition recovery software

There is an easy way for lost partition recovery without losing data. That is AOMEI Partition Recovery Wizard, a built-in feature in AOMEI Partition Assistant Professional. It helps users recover deleted or lost partitions within three steps. It is a powerful disk management tool that performs disk partitioning, like resizing partitions, moving partitions, merging partitions, splitting partitions, etc.

There are two methods to recover lost partitions: Fast Search and Full Search. Fast Search can help you find lost partitions and deleted partitions quickly. If your partition does not show up properly, then you can go to try Full Search.

To recover lost partitions in Windows 11/10/8/7, you could download AOMEI Partition Assistant Professional Demo first.

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

Step 1. Select Partition Recovery Wizard on the left panel of the main interface and choose the disk that included the lost partition. Click "Next".


Step 2. Select a search mode. Fast Search and Full Search. It is recommended that you select Fast Search the first time because it saves a lot of time. Click “Next” to continue.


Step 3. The program will display the list of all lost partitions. Choose the one you want to recover.


Step 4. The partition recovery process will be completed in a few seconds. Click “Finish” to exit. Go to File Explorer to find the lost partition.


If new data haven’t overwritten the data included in the lost partition, the old data will be back together with the lost partition. If you only want to recover selectively deleted files from partitions, a reliable data recovery tool could be a good choice. It's recommended to use MyRecover to recover deleted files from hard drives, USB drives, SD cards, cameras, etc. in Windows 11/10/8/7 and Windows Server.



How to find lost partitions? If you lost partitions accidentally, you need to confirm the lost partitions are visible in Disk Management and then take measures to restore lost partitions. The easiest way is the AOMEI Partition Recovery Wizard for lost partition recovery within four simple steps without any technical knowledge. It not only recovers the lost partition but the data is included.

Of course, if you want to avoid partition and data loss in the future, making a regular backup of vital data could be the best method. AOMEI Backupper is recommended to back up, restore, clone, and sync partitions and data in Windows computers.

Lora · Editor
Lora is an editor of AOMEI Technology. She is also a tester and editor of AOMEI Data Recovery Tools. -- "Keep testing, write the most useful tutorials for helping people recover the lost data for Windows and phones" is the most meaningful thing for her. Dedicated to creating helpful tutorials, she hopes her tutorial can assist users to effortlessly solve data loss problems on their personal computers and mobile phones.