By Emily / Last Updated January 16, 2019

Major signs when SD card gets corrupted

In the paperless era, the SD card has become a popular storage media for individuals to store data. However, they are easy to get damaged due to sudden removal during files transferring, incorrect formatting operations, bad sectors, virus attack, and some other unknown reasons.

In general, your SD card is bound to get corrupt or damaged if you find the below signs on Windows computer:

> A black screen pops out when you try to access it, along with an error message “SD card is not accessible. The file or directory is corrupted and unreadable.”

> You can see the contents on your SD card, but cannot make any changes like adding, deleting, copying or saving data on it since the disk is write protected (also called read only).

> When you attempt to read the SD cardoncomputer, it does not open and shows error messages “Read / Write error on SD card”.

> Your SD card is recognized by your computer, but you couldn't access stored files,and receivean error message “SD card is not formatted. Do you want to format it now?”.

> The SD card shows 0 bytes used space and 0 bytes free space in Properties.

Quick fixes for SD card corruption

Before proceeding to how to format corrupted SD card, you can try some quick fixes first to check if SD card can be back into healthy condition: run Chkdsk command to check and fix bad sectors, assign a new drive letter to an unreadable SD card, reinstall the driver, or remove write protection on SD card.

How to format corrupted SD card in Windows 10?

If such quick fixes do not work at all, the last method is to format the corrupted SD card. If there are something important stored within it, please first recover them using a data recovery program like Recoverit Pro. That’s because formatting process will delete all data from the SD card.

Usually, you can format a SD card via Disk Management and File Explorer. But for a corrupted SD card, there are chances that you will fail in those traditional formatting methods. No need to worry since there are another two methods you can try.

Method 1. Forcefully format corrupted SD card with Command Prompt

Step 1. Connect the corrupted SD card to your computer. Click “Start” button and input “cmd” in the “Search” box, right click “Command Prompt” and select “Run as administrator”.

Step 2. In the CMD window, type “diskpart” and press Enter.

Step 3. Type “list disk” and press Enter. You will see a list of all storage devices connected to yoru computer.

Step 4. Type “select disk ” and press Enter. (Here we select disk 1 as an example).

Warning: Make sure you enter the right number or you will format the wrong disk and lose data.

Step 5. Type “clean” and press Enter.

Step 6. Type “create partition primary” and press Enter.

Step 7. Type “format fs=ntfs quick” and press Enter.


Method 2. Powerful software to format corrupted SD card(Recommended)

Diskpart is a great tool to manage disk partitions, but it comes with some limitations. For example, it cannot format SD card larger than 32GB to FAT32 and reports an error: the volume is too big for FAT32. So you need a more powerful software like AOMEI Partition Assistant Standard. This freeware allows you to format large SD card or other hard drives to FAT32 easily. Furthermore, it can format write-protected, RAW drives to a compatible file system in Windows 10/8/7/XP/Vista.

To format corrupted SD card:

Step 1. Download, install and open AOMEI Partition Assistant Standard on your Windows computer. Right click the damaged SD card and select “Format Partition”.

Format Partition

Step 2. Choose a proper file system for your requirements (ex: FAT32) and hit on “OK”.

FAT32 Filesystem

Step 3. Click “Apply” and then “Proceed” to commit the pending operation.


Summing it up

This is all about how to format corrupted SD card with Command Prompt and AOMEI Partition Assistant Standard. If upgrade AOMEI Partition Assistant Standard to Pro edition, you can manage your disk more flexibly. For example, you will be able to convert dynamic disk to basic without losing data, convert system disk from MBR to GPT and vice versa while keeping data safe, and more.