2 Ways to Recover Lost Partition Micro SD Card

This tutorial shares two Micro SD partition recovery methods with you, including CMD and partition recovery software - AOMEI Partition Assistant. For data recovery only, try data recovery software.

By Ivy    Updated on April 15, 2026

Is it possible to recover lost partition Micro SD card?

 

Hello! My girlfriend has a 128GB Micro SD on her laptop. However, one of the Micro SD card partitions is missing. This lost Micro SD partition is important to her because there are many files on it. Could you help me recover the lost partition Micro SD card? Thanks.

- Question from Reddit

Although the Micro SD card is a tiny flash memory card, it is widely used in mobile phones, laptops, GPS, and other portable devices. As you can see, it is playing an increasing role in our daily lives and careers.

Are you attempting to recover lost partition Micro SD card? Please scroll down to get possible causes of partition loss and feasible solutions for Micro SD card recovery.

Possible reasons for Micro SD partition recovery

In computers, separate partitions indeed render convenience for users. Nevertheless, it also brings potential risks such as partition loss, corruption, formation, etc.

Maybe the following possible reasons are not sufficient enough to exempt you from data loss, but they will remind you to stay away from these minefields as much as you can.

  • Accidental deletion
  • Bad sectors or tracks
  • Partition table loss or damage
  • Virus attacks

How to recover lost partition Micro SD card (2 Ways)

This part focuses on guiding you to recover lost partition Micro SD card with 2 efficient but distinct solutions. If you’re familiar with CMD, maybe you can try out the former solution. Otherwise, powerful partition recovery software is a pertinent proposal.

Solution 1. Recover lost partition Micro SD card using CMD

As you can see, the most common factor for partition loss is accidental deletion. For Windows, incorrect deletion could create “unallocated” space, which is only visible in Disk Management. Once you assign a drive letter to it, the lost partition will appear and be accessible in File Explorer.

Step 1. Press the Windows + R keys to open the Run window. Then, enter diskmgmt. msc and click OK to open Disk Management.

Step 2. Locate your deleted/lost Micro SD partition and remember its size, usually marked as unallocated space.

Step 3. Enter cmd in the search bar and select Run as administrator.

Step 4. In the Command Prompt window, type diskpart in the window and press Enter to open this tool.

Step 5. Type the following commands to assign the drive letter of the lost partition. Remember to press Enter after each line. 

  • list disk
  • select disk # (# means the number of the hard drive, including the lost partition).
  • list volume
  • select volume # (# means the number of the lost partition)
  • assign letter # (# means an available drive letter).

Solution 2. Use Micro SD card partition recovery software

If you want to recover the lost partition Micro SD card without losing data, there’s no better way than using trustworthy partition recovery software.  AOMEI Partition Assistant could resolve your concerns with four steps.

This user-friendly program enables everyone to recover the deleted/lost NTFS, FAT32, exFAT partitions, and their data from a Micro SD card without high-tech knowledge. And Ext2, Ext3 partition recovery is also allowed. It provides users with two advanced scanning methods:

  • Fast Search: Scan your Microsoft SD card to find lost partition quickly. This is the recommended method.
  • Full Search: Scan every sector of your card and take longer. Try this method when Fast Search fails.

In addition, the multifunction disk manager still allows you to create, resize, move, merge, and split partitions, convert disks between MBR and GPT, migrate operating systems to SSD drives, etc. 

Step 1. Download and install AOMEI Partition Assistant on your PC. Go to the Recover tab, click Partition Recovery, and select the disk that includes your deleted/lost Micro SD partition.

AOMEI Partition Software

A reliable partition recovery software for Windows

Step 2. Select Fast Search to find your deleted/lost Micro SD partition quickly.

Step 3. After the process, you can see your deleted/lost Micro SD partition. Then, select the partition you want to recover and click Proceed.

Click “Finish” to exit after seeing the “Congratulations” message.

Bonus: How to recover data from lost partition 

In general, your files on the lost partition will be recovered as well. However, sometimes your files may still be missing after partition recovery. Try powerful data recovery software - AOMEI FastRecovery to retrieve data in Windows 11, 10, 8.1/8, 7, and Windows Server. 

AOMEI FastRecovery
Best Free Data Recovery Software for Windows
  • 💰Cost - free data recovery up to 500MB.
  • ✅Recoverable Scope: Recover data in any scenarios, such as permanent deletions, lost partitions, disk formatting, system crashes, virus attacks, etc.
  • 2️⃣Scanning Modes: Equipped with two advanced scanning algorithms, you can find all recoverable data quickly.
  • 👵 Simplified layout for easier navigation: Primarily organized by file type and path, along with options to sort, search, filter, and preview files.
  • 💾 Multiple cards compatible: Support SD card, Micro card, CFast,  CFexpress, XQD, etc.
  • 📚1000+ data types: Recover documents (e.g., recover permanently deleted Excel), audio, video, compressed files, emails, and more, with a high success rate.
⚠️Notes:
  • Don't download and install AOMEI FastRecovery to the drive containing the deleted Excel files.
  • Don't add new data to the drive containing deleted Excel files. Or reformat it. These operations may result in data overwriting.

Step 1. Run AOMEI FastRecovery after installing it. Then, click Partition Lost Recovery

Step 2. Select a lost partition and click Scan. It will scan your partition deeply to find all recoverable data on it.

Step 3. Under the Type section, specify a data type and expand it to see all data formats. or to sort them or search the name for quick recovery. 

⚠️Note: You can also locate deleted files by Path if you remember this.

Step 4. Select the desired data and click Recover to get data back from lost partition. Double-click to preview files if you are not sure.

⚠️Note: Please save the retrieved files in a new path instead of the original drive, preventing data overwriting.

Wrapping up

Are you seeking efficient ways to recover lost partition Micro SD card? In the beginning, you can use Disk Management to access the deleted/lost partition Micro SD card first. If the partition loss is due to drive letter loss, you can assign a drive letter with CMD. If not, AOMEI Partition Assistant Professional is a better option for Micro SD partition recovery.

If you are concerned about data only, data recovery software - AOMEI FastRecovery will be a better choice. It will scan lost partition and find all recoverable data for recovery. It's easy to navigate and efficient. Does this guide help you out?

Ivy · Editor
Ivy, our dedicated editor at AOMEI Technology, is committed to providing valuable insights and guidance in data protection. Her mission is to empower everyone with her knowledge of computer backup and recovery, disk cloning, file synchronization, and more. Ivy's goal is to do her best to ensure your digital world remains safe and secure.