How to Recover Missing Partition in Windows 7?

Want to recover missing partition in Windows 7 but don’t know how to? You could get help on this page with practical solutions.


By Lora / Updated on July 1, 2022

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"How do I recover a lost partition in Windows 7?"

Hard drives, storage devices widely used, are usually divided into several partitions to store and transfer various types of data out for different use.

But sometimes, partitions will get lost.


Hi, I accidentally deleted a partition in Windows 7 using the disk management tools. That partition is full of works and photos from the last 2 years. Is there any way I can recover the data?


- Question from Tom’s Guide


The data becomes unavailable/inaccessible as well when the partition is lost or missing, which is pretty upsetting. But rest assured, with the assistance of expert partition recovery software, partition recovery may still be possible.

This article will surely be useful if you don’t know how to recover a lost partition, or how to restore an accidentally deleted partition.

And now, before we get into the methods to recover missing partition in Windows 7, let's go through some of the most typical causes of missing partitions to help you find out what's wrong with your data.


Common factors of missing partition in Windows 7

How does a partition get lost? Some factors are to blame for it.

Accidental deletion. Users may accidentally click “Delete” in Disk Management or misuse the “Clean” Command Prompt.

♦ Drive letter loss. After reinstallation, drive letter change, etc., the drive letter can get lost, and then the data is inaccessible.

♦ Hard drive repartition. If you repartitioned the hard drive, no existing partitions are left.

♦ System reinstallation. Reinstalling your system will also wipe all the partitions if you don’t choose to keep the previous partitions. You could try MyRecover to restore data after reinstallation.

♦ Corrupted partition table. Partition tables can get corrupted due to viruses, errors, etc., which will lead to inaccessible partition. Then you have to recover corrupted partition table.

♦ Bad sectors. Bad sectors caused by physical damage or logical damage can lead to partition loss, because partitions may not be recognized.

If your partitions are lost because of repartition/bad sectors, then your partition and the data in it are gone to a large degree.

Now, for the missing partition after deletion and drive letter loss, 2 practicable means of how to restore deleted partitions are ready for you in the following section.

How to recover missing partition in Windows 7?

How to undelete partition in windows 7? Is it possible to get the lost partition back?

Of course, yes, as long as no more write-in operations are done to the hard drive after partition loss.

With no data written in, the partition and its data are not overwritten and can get recovered successfully.

Case 1. Recover missing partition after drive letter loss

Drive letter/volume label loss can lead to a missing partition. At this time, CMD can help you reassign a letter to it, then the missing partition will be visible.

Users who are not familiar with CMD are prone to misuse commands and get things worse, so use this method with care.

Step 1. Run Command Prompt as administrator.

Step 2. Input “diskpart” > “list disk” >“select disk X”. “X” refers to the number of the drive on your PC.

Step 3. Then input “list volume” > “select volume Y”. Please replace the “Y” with the real number of the volume.

Step 4. Then input “assign letter = Z”. Use a letter different from all the letters of the existing volumes.


Case 2. Recover missing partition in Windows 7 after deleting

How to undelete partition in windows 7 easier? If the partition got deleted somehow, and then the partition is gone, then you could try a professional partition recovery tool – AOMEI Partition Assistant to recover missing in partition Windows 7.

It scans the hard drive with an advanced scanning algorithm and quickly locates the lost partitions from HDD/SSD/USB/SD card, etc.

As a compatible software, it supports partition recovery in Windows 11/10/8/7/Vista/XP, which can perfectly help Windows 7 users.

To restore deleted partition, download the AOMEI Partition Assistant Pro version, please. Enjoy a free trial in the Pro demo.

Download Demo Win 11/10/8.1/8/7/XP
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After partition loss, please minimize the use of the hard drive which has lost partitions.

Step 1. Click “Partition Recovery Wizard” in the side toolbar > select the disk that contains the missing partition > click “Next”.


Step 2. Select a search mode. Try “Fast Search” first to save your time, if it doesn’t work, try “Full Search”.


Step 3. Then all the scanned lost partitions will be listed. Select the lost partition you need > “Proceed”.


This tool scans hard disk for deleted partitions within several minutes. Using it, you can successfully recover missing partition in Windows 7.

Related suggestions

In the daily use of computers, emergencies occur. Human error, unexpected shutdown, bad sectors, viruses, etc., and bunches of factors can cause partition loss sometimes.

In order to avoid more missing partitions in the future, some suggestions are ready for you.

  • Keep your computer/laptop fully charged. Power shortage may lead to a sudden shutdown.
  • Do not visit fishy or dangerous websites.
  • Use antivirus software to protect your computer.
  • Keep the hard drives away from a wet, dusty, oily environment.
  • Avoid shaking the hard drives.
  • Do not interrupt the process when repartitioning.

With this tutorial, you could recover missing partition in Windows 7 effortlessly and securely with the help of AOMEI Partition Assistant.

And also, as compatible partition recovery software, it applies to different devices, e.g., it can recover HDD partitions with ease, moreover, SSD partition recovery is practicable as well.

To recover lost or deleted data from hard disks in Windows 7, let MyRecover to be your helping hand. 

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.