By AOMEI / Last Updated May 15, 2020


“Hey guys, this is the latest idiotic things that I’ve done. While trying to install Ubuntu on another computer that I have, I forgot that I had my external hard drive plugged to the PC via USB port. So, when I got to the partitioning part of the installation, I noticed an extra partition that shouldn’t be there. I thought it was a useless partition and deleted that partition without thinking, and continued with the installation. Nothing was installed or written to that partition during the installation, however, all the data on that partition was gone. Is there any solution to recover that partition back? Any suggestion will be appreciated in advance!”

About partition recovery Windows 10/8/7

Many users think that the partition will disappear forever after deletion or cleanup. In fact, the lost partition is likely to be recovered in Windows 10/8/7. When you delete a partition on the computer, the system just removes partition information from partition table rather than completely wipe the disk area once occupied the deleted volume. After deleted a partition, you cannot see the partition in Disk Management or File Explorer. But if the partition table and boot sector of the disk are not deleted, you can recover this partition through Windows built-in tool or a third party tool.

How to do partition recovery in Windows 10/8/7?

To do partition recovery in Windows 10/8/7, you can use CMD or a third party tool to complete this operation.

Method 1. Recover partition via CMD

If the partition loss is caused by loss of drive letter, volume label, partition name or Diskpart clean command, you can use the built-in CMD to recover the deleted partition. The following example is the specific steps of recovering partition via CMD:

1. Press “Windows” + “R” to open the Run box, then type “diskmgmt.msc” and press “OK”.

2. After that, find the deleted partition and remember its partition size. (Usually, the deleted partition will be marked as unallocated.)

3. Run CMD as administrator, and type “diskpart” in the window, then press “Enter”.

4. In the pop-up window, input the following commands and hit “Enter” after each command.

list disk

select disk n (here “n” is the disk number of the disk which contains the deleted partition.)

list volume

select volume m (here “m” is the number of the lost partition.)

assign letter=r (here “r” is the drive letter which cannot be used before.)

Recover Partition Using CMD

5. After that, exit this window and you can access that partition.

Method 2. Recover partition with the best partition recovery software

Besides recovering partition via CMD, here also provides you another easy method to complete this operation. You can also use a partition recovery tool to recover the lost partition. Here the best partition recovery software - AOMEI Partition Assistant Professional can be very helpful. Compare with CMD, it’s easier to learn and operate. Its function of Partition Recovery Wizard can help you easily recover the lost partition in Windows 10/8/7, Windows XP, as well as Windows Vista. Besides Partition Recovery Wizard, it also provides many other useful functions like Format Partition, Format Partition, Rebuild MBR, SSD Secure Erase Wizard and so on. You can also convert logical partition to primary partition with it too. The following example will show you the specific steps of recover partition with AOMEI Partition Assistant Pro:

Step 1. Find the lost partition in Disk Management. Then, install and run AOMEI Partition Assistant Professional. Then, Click “Partition Recovery Wizard” on the left panel.

Partition Recovery Wizard

Step 2. In the pop-up window, select the disk which contains lost partition and click “Next” to continue.

Select Disk

Step 3. After that, select “Fast Search”. This option takes less time. (If you cannot recover the lost partition for the first time, you can try Partition Recovery Wizard again and select “Full Search” later.)

Select Search Method

Step 4. Then, select the lost partition to recover and click “Next”. If you are not sure, click “Explore files in this selected partition” and view the files in the partition. And click “Proceed” > “Finish” to complete this operation.

Select Lost Partition


Till now, you can easily do the lost partition recovery in Windows 10/8/7. AOMEI Partition Assistant Professional can be the best partition recovery software. If you encounter the problem Current read only state yes, AOMEI Partition Assistant can help you too. With the help of this magical tool, you can better manage your hard drive. If the operating system of your computer is Windows Server, you can turn to AOMEI Partition Assistant Server to enjoy more advanced features.