By Emily / Last Updated July 6, 2020

SD cards are easy to get damaged or corrupted

Nowadays, SD cards have become a prior choice for individuals to store data due to its extended capacity, encryption capabilities, portability, etc. However, they are prone to corruption. Any accidental formatting or improper ejection could cause damage. If not be handled properly with an appropriate SD card repair tool, it might lead to a permanent loss of all stored photos, videos, and audio files. Besides, SD cards usually have a limited lifespan, so after a certain period of usage, they are more easily to get corrupt.

Main causes & symptoms of SD card corruption

To avoid Micro SD card corruption, it is better for you to know the reasons behind it.

◆Virus/malware attack

◆Abrupt card removal during file transferring

◆Bad sector

◆Mistakes or sudden interruptions while formatting card

File system error

Generally speaking, corrupted SD cards are more likely to trigger the following symptoms.

◆when you plugged in SD card into your computer, Windows will prompt an error message: Drive H:\ is not accessible. The file or directory is corrupted and unreadable.

◆When you try to read the SD card on a certain device, like PC, error messages “Read / Write error on SD card” will pop out. That indicates it cannot read from the device and you are unable to access data stored in it.

◆You can see the contents of your SD cards in computer, but be unable to make any changes to it such as adding new data, transferring them, etc, and get an error message saying the disk is write-protected.

◆Your SD card is detected and recognized by your computer, but you are unable to access any data stored within it. It shows the message “SD card is not formatted. Do you want to format it now?”.

How to repair corrupted SD card?

How to repair corrupted SD card? Usually, you ought to first check whether it has any physical damage since it cannot be repaired by any software. If it is in a good physical condition, it might suffer from some logical error, which requires technical fixes.

Then, you can run CHKDSK commands chkdsk g: /f /r /x (g is the drive letter of your corrupted SD card) to check whether there are some bad sectors on the card.

Chkdsk Check Error

Or you can remove write protection with DiskPart utility. But those two methods involve typing and running complicated commands, a headache for most users, especially those without basic computer knowledge. Therefore, a user-friendly GUI SD card repair tool is a much better choice.

Download free SD card repair software-AOMEI Partition Assistant

When you Google corrupted memory card repair software for windows 7/8/10 online, numerous options will appear, all of which are advertised to be able to repair damaged flash drive/Micro SD card/memory card/HDD/SSD. But, in my experience, only few of them work as well as they have advocated. To save your time and energy to find out a powerful micro SD card repair tool, here we bring a good recommendation: AOMEI Partition Assistant Standard.

Best SD Card Repair Software | AOMEI Partition Assistant

Repair SD card via different methods. Support most of USB brands, such as Kingston, SanDisk, Samsung, etc.

Download Freeware

Win 10/8.1/8/7/XP

20,000,000 people have downloaded it

It’s free SD card repair software, supporting all editions of Windows7/8/8.1/10/Vista/XP. It can repair damaged Samsung, SanDiskSD, Kingston, Panasonic SD card card and other different brand cards. More importantly, it is capable of checking bad sectors and removing write protection in easy steps.

Method 1. Check disk/partition error

1. Download the freeware. Install and launch it. Right-click the corrupted SD card and select Surface Test.

Surface Test

2. Tick Quick Check and click Start to check whether there are any bad sectors on the disk.

Disk Surface Test

This is how to check disk error. If you want to check SD card partition error, you can right click a partition on the card->Advanced->Check Partition-> Choose a way to perform partition checking and click OK.

Check Unallocated Partition

Check Errors Way

Method 2. Format the corrupted SD card to repair it (write protection removal)

If there are no bad sectors on the SD card, you can try to format it to reset it into reusable again.

IMPORTANCE: since formatting will destroy everything in the corrupted SD card, you should first try to recover all data from it using Recoverit Pro.

1. Run AOMEI Partition Assistant. Right click the damaged SD card partition and select Format Partition.

Format Partition 16GB

2. Choose a desired file system (ex: FAT32) from File System menu and click OK.

Select File System 16GB

3. Back to the main interface. Click Apply to execute the pending operation.

Apply Proceed 16GB

The formatting process will clear write protection from damaged SD card easily without requiring you to run complex commands.

Method 3. Rebuild MBR partition table

Besides, you can also use it to fix MBR partition table on SD card.

Rebuild Data Disk Mbr

1. If you upgrade to AOMEI Partition Assistant Pro, you will be able to enjoy more powerful features like recovering missing partitions, allocating free space from one partition to another, easing SSD drive without damaging its lifespan and migrating OS to SSD drive.
2. Its Server Edition is specially designed for Windows Server users to optimize the Server performance with most ease.

Bonus tips: how to avoid data loss caused by corrupted SD card

Since no recovery tool can guarantee 100% recovery rate for your data on corrupted SD card, it is important to avoid possible data loss.

  • SD cards have a limited life span. In general, a flash card can support approximately 10,000 write/erase operations. So you should get a new card after using the old one for several years.

  • If some photos, videos, or files are really important to you, make an extra copy on your computer. To backup data on computer, you can use AOMEI Backupper, which allows you to set automatic backups or incremental/differential backups to save time and storage.