By Stephanie / Last update March 14, 2022

Is it possible to recover the missing partition?

“I have windows 8 64 bit on my dell. When I started system recovery everything was fine but when I checked my 1 hard drive partition was missing I saw in disk manager it was there without any label. It was named (Healthy) primary partition. There was still 150 GB on it what should I do ??”

Generally, the hard drive is logically divided into several parts, which are called partitions. Although the partition is convenient for users to store system and personal data separately, sometimes, it will get inaccessible or not show up due to corruption, accidental deletion, or other unknown reasons.

The operating system erases its information from the partition table when a partition gets lost. You need to open Disk Management to check the status of the missing partition firstly. If the missing partition is marked with an asterisk, Unallocated, or RAW, the partition recovery can be fulfilled.

Why is your partition missing in Windows 10?

Before trying to recover the missing partition in Windows 10, it is important to find out the reasons for avoiding partition loss in the future. Windows 10 partitions might miss for a variety of reasons.

  • Users’ improper operation
  • Partition table corruption
  • Loss of the volume label, drive letter, or partition name
  • Bad sectors or tracks
  • Unexpectable Power failure
  • Virus attack and malware
  • Repartition hard drive
  • Incompatible file system
★Tips to restore the missing partition in Windows 10 successfully
Perform partition recovery as soon as possible after it has been missing. Because it will become unrecoverable once your lost files are overwritten or covered by new data.
Do not make any new operation on the hard disk.
Do not create a new partition on the unallocated space in Disk Management.
Do not rebuild the partition table.
Do not reformat the hard disk.

 

The top two ways for Windows 10 missing partition recovery

If your partition is missing in Windows 10, all the data in the partition will be deleted as well. There are two methods you can try to recover the missing partitions in Windows 10. Using reliable partition recovery software, like AOMEI Partition Recovery Wizard, is certainly the easiest one.

Method 1: Recover missing partitions by professional partition recovery software

If the partition is missing, a professional partition recovery tool can rescue your partition and data. AOMEI Partition Recovery Wizard, one of the built-in features of AOMEI Partition Assistant Professional, is created to recover deleted, lost, or missing partitions including FAT, NTFS, Ext2, Ext3, and Ext4 for Windows 10, 8, 7, Vista.

ஐஐ Main features of AOMEI Partition Assistant Professional:

A versatile disk management tool helps you to manage disk partitions with no effort. With stunning features, AOMEI Partition Assistant gains a lot of reputation from more and more computer users.
► Disk partition manager: resize partition, move partition, merge partitions, split partition, format partition, allocate free space, create partition, align partition, dynamic volume management, migrate OS to SSD or HHD, etc.
► Converter & wizards: convert MBR to GPT, convert dynamic to basic disk, convert NTFS to FAT32, convert primary to logical partition, partition recovery, disk clone, APP mover, Windows to Go creator, etc.
To recover missing partitions in Windows 10, you can download the demo version below first.

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

Step 1: Install and open AOMEI Partition Assistant Professional. Choose Partition Recovery Wizard on the left panel and select the disk including the missing partition. Click on “Next”.

partition-recovery-wizard

Step 2: Select a search mode. It is recommended to select Fast Search the first time because it saves more time than Full Search. If it fails to find the missing partition, you can try Full Search again. Then, click on “Next”.

partition-fast-search-mode

Step 3: The list of all missing or deleted partitions will be displayed. You can select the one you want to recover.

select-lost-partition

Step 4: After the partition recovery process completes, click “Finish” to exit after the message “congratulations” shows.

partition-recovery-finished

Then you can open Windows File Explorer to check whether the missing partition is visible and accessible. If the data in the missing partition hasn’t been covered or overwritten by new data, it will be restored together with the partition. 

Method 2: Assign a drive letter to the missing partition via Command Prompt

Sometimes, the partition is not missing but invisible due to lacking a drive letter. In Disk Management, the missing partition will be marked with an asterisk. Through reassigning a drive letter to the missing partition by CMD, the missing partition will become visible again in Windows File Explorer. In addition, this method requires users are familiar with the Command-Line operation. 

Step 1: Press “Win + R” and type “diskmgmt.msc” in the Run window to open Disk Management to find the missing partition. (If a partition is missing, the volume will be marked as Unallocated or with an asterisk. Remember the partition size.)

Step 2: Press “Win + R” and type “CMD” to Run CMD as administrator.

Step 3: Type "diskpart" in the CMD window and hit Enter.

Step 4: Type "list disk" and hit Enter. All disks in the computer will be on the list.

Step 5: Type "select disk # " and hit Enter (Replace # with the number of the hard disk that contains the missing partition).

Step 6: Type "list volume" and hit Enter. All volumes on the disk will be displayed.

Step 7: Type "select volume #" and hit Enter (replace # with the number of the missing partition).

Step 8: Type "assign letter=#" and hit Enter (Replace # with an available drive letter, from C to Z).

command-prompt-recover-lost-partition

Bottom line

Partition recovery isn’t too difficult to perform if you choose the right method. Lacking a drive letter and accidental deletion are the most common reasons causing partition missing. Besides, if your partition is missing due to other unknown reasons, AOMEI Partition Recovery Wizard would be your best choice to recover the missing partition. Of course, the best way to avoid the partition data loss is regular backup of vital data in other storage devices or a reliable backup tool-AOMEI Backupper.