What causes partition loss on micro SD card? In this article, you can know the most possible reasons and learn two effective methods to recover the lost partition with ease.
Partition loss on a micro SD card can happen for various reasons, often related to hardware issues, software problems, or user operations. Here are the most common causes:
◈ Accidental deletion or formatting: Deleting a partition or formatting the micro SD card unintentionally can cause partition loss.
◈ File system corruption: Improper ejection, sudden power loss, or interrupted file transfers can corrupt the file system, making the partition disappear.
◈ Virus or malware attacks: Malicious programs can damage or hide partitions by altering the partition table.
◈ Physical damage or wear: Micro SD cards have limited write cycles. Physical damage, water, heat, or bending can cause partitions to become inaccessible.
◈ Partition table errors: If the partition table or Master Boot Record (MBR)/GUID Partition Table (GPT) gets corrupted, the system can no longer recognize the partition.
◈ Improper use between devices: Frequently switching the micro SD card between cameras, smartphones, and computers without proper ejection can cause partition loss.
◈ Bad sectors: When storage sectors fail, the system may not detect the partition correctly.
If you want, I can also explain how to recover a lost partition from a micro SD card safely without data loss. Do you want me to show that?
After understanding the common causes of partition loss, this section guides you through recovering a lost partition on a microSD card. Two effective methods are available: using CMD for those comfortable with command-line operations, or opting for dedicated partition recovery software for a simpler and more reliable solution.
Accidental deletion is one of the primary causes of partition loss, especially in Windows. When partitions are deleted incorrectly, they may turn into "unallocated" space. If you can’t locate your lost Micro SD partition through Windows File Explorer, it’s likely that the partition resides in this unallocated area. Fortunately, you can utilize Disk Management to check and recover it.
If the partition is indeed unallocated, you can assign a drive letter via CMD, making the partition visible to the operating system and allowing you to reuse it. Below is a step-by-step guide on how to open Disk Management through CMD and recover a lost Micro SD partition.
Step 1. Press "Windows + R" to open the Run dialog. Then, type "diskmgmt.msc" and hit "OK" to launch Disk Management.
Step 2. Find your missing Micro SD partition and note its size. It will be listed as unallocated space.
Step 3. In the search bar, type "cmd" and select "Run as administrator".
Step 4. In the Command Prompt window, type "diskpart" and press "Enter".
Step 5. Type "list disk" and press "Enter" to display all the disks connected to your computer.
Step 6. Type "select disk 2" (replace "2" with the disk number that includes the lost partition) and press "Enter".
Step 7. Type "list volume" and press "Enter" to see all the available volumes on the selected disk.
Step 8. Type "select volume 4" (replace "4" with the volume number of the lost partition) and press "Enter".
Step 9. Then, type "assign letter =g" (replace "g" with an available drive letter) and press "Enter".
Step 10. Close the Command Prompt window and check if the deleted partition has been successfully restored.
To recover a lost Micro SD partition without risking data loss, the most reliable solution is to use trustworthy partition recovery software. AOMEI Partition Assistant offers a straightforward, four-step process to handle this task with ease.
This user-friendly tool allows you to recover deleted or lost NTFS and FAT partitions, along with their data, from your Micro SD card across all Windows versions—no technical expertise required. It also supports recovery for Ext2 and Ext3 partitions.
Additionally, AOMEI Partition Assistant offers a variety of disk management features. You can create, resize, move, merge, and split partitions, as well as convert boot disks between MBR and GPT formats. It even lets you migrate your operating system to an SSD. Try the demo version to explore its powerful capabilities firsthand.
Step 1. Install and open AOMEI Partition Assistant. Click “Recover” in the top toolbar and select “Partition Recovery”. Select the SSD drive that contains the deleted partition and click "Next".
Step 2. Select a search method and click Next. Here we select the "Fast Search".
Step 3. Select the deleted or lost partition you wish to recover from the list and click "Proceed".
Step 4. Wait for the process to be completed. The "Congratulations" means your partition has been recovered successfully. Then click "Finish" to exit the window.
Looking for effective methods to recover a lost Micro SD partition? Start by using Disk Management to check if the deleted or lost partition is accessible. If the issue stems from a missing drive letter, you can easily assign one using CMD. However, if the problem is more complex, AOMEI Partition Assistant offers a more robust solution for recovering your Micro SD partition.
