4 Steps to Recover lost partition in Windows 10 or 11

Is there a way to recover lost partition?

Partition loss is one of the most commonly occurring problems in the operating system. It’s very unpleasant when you can’t find the partition and files where you expect them to be. Below are real case taken from a forum:

First, the lost partition is recoverable as long as you don't overwrite it. Second, the lost partition recovery method depends on the reasons specifically, and we will introduce you to the possible reasons in the next section. The easiest method is using a powerful partition recovery software.

✘✘✘To avoid further data loss, please don't do the following operation:

Do not create a new partition with the unallocated space. 

Do not reformat the hard drive.

Do not rebuild the partition table or MBR.

The possible reasons for lost partition

To prevent partition loss from happening again in the future, you’d better know the reasons why a partition becomes lost. There are a few factors that cause partition loss or deletion.

Is the lost partition recoverable?

Normally, the partition is recognized by your computer via its partition table and boot sector. When a partition is deleted, the operating system deletes its information like partition type, size, and file system, from the partition table but keeps sectors taken by the volume. You just only can’t see the deleted or lost partition in Disk Management and Windows File Explorer.

Fortunately, you can recover the lost partition if you act as soon as possible after the deletion or loss. AOMEI Partition Assistant, a professional partition recovery software, can make things easier with a concise interface and simple operations for anyone. You can also recover lost partitions via CMD to assign a drive letter to lost partition. 

4 steps to perform lost partition recovery

AOMEI Partition Assistant, as a professional disk management program, provides a Partition Recovery wizard, to help users restore lost or deleted partition in Windows 7, 8, 10, and 11 including NTFS/FAT32/exFAT/ext3/ext4. With advanced scanning methods, you can perform lost partition recovery effectively in 4 steps. 

“Fast Search” may facilitate your lost partition to be quickly found. It's the recommended method.

“Full Search” will scan every sector of your disk, which is more time-consuming. Choose this type if “Fast Search” fails.

To recover lost partition in Windows 10 or 11 via AOMEI Partition Assistant Professional, download the demo version first and then follow the steps detailed below.

Step 1: Install and open AOMEI Partition Assistant. 

Step 2: Choose Partition Recovery under the Recover option and select the disk including the accidentally deleted partition. Click Next.

Step 3: There are two kinds of search methods. It’s recommended that you select Fast Search the first time because it’s faster than Full Search.

Step 4: Select the lost partition, and click “Proceed”. Then you can see the congratulations message when finished.

Then you can go to Windows File Explorer to check whether the partition is recovered. If you did not make any new operations on the lost or deleted partition, the data stored in it will also be back and accessible.

🔥What if your data is not restored completely?

If some files are still missing after partition recovery, try a powerful data recovery software like MyRecover to recover data on the lost partition. It's embedded with advanced algorithms and can scan health, damaged, or formatted disk as well as lost partition for data recovery.

Simply go to MyRecover and the PC Recovery section, select lost partition and click the Scan option. It will scan your partition quickly and deeply to find all the recoverable data. During the process, you can search, filter, and preview any files if necessary. Once complete, click the Recover button.

Further reading: recover a lost partition using CMD

There is another method to recover a lost partition. If your problem was caused by the loss of volume label, drive letter or partition name, you can try the following steps to assign a drive letter to the lost partition and make it visible in Windows Files Explorer via CMD.

Step 1: Find the lost partition in Disk Management. Press “Win + R” and type “diskmgmt.msc” in the Run window, and then press OK to open Disk Management. The lost or deleted partition will be marked as Unallocated. Do remember the partition size.

Step 2: Type "CMD" in the search bar to open and run CMD as administrator.

Step 3: Type “diskpart” in the window and press Enter.

Step 4: Type “list disk” and press Enter. After that, all disks on the computer will be listed.

Step 5: Type “select disk *” and press Enter (Replace * with the number of the hard drive that contains the lost partition).

Step 6: Type “list volume” and press Enter.

Step 7: Type “select volume *” and press Enter (replace * with the number of the lost partition).

Step 8: Type “assign letter=*” and press Enter (Replace # with an available drive letter “C, D, E…Z”).

Conclusion

Fully understanding the partition loss reasons can avoid recurrence of it in the future. Professional partition recovery software can help you effectively recover lost partition in Windows 10 or 11 in 4 steps. The files in the los partition will be recovered.

If your files are not restored completely, you can still seek help from a reliable data recovery software. Embedded with two advanced algorithms, MyRecover becomes a good choice. It supports 200+ file recovery from a lost partition. Why not give it a try?

It’s recommended that you make a full backup image for your partitions to restore data and partitions easily once the operating system or file system gets corrupted.