How to Reformat a Corrupted SD Card

By Angela LaFollette

Secure digital, or SD, cards are commonly used in digital cameras to store pictures. The cards are available in a wide range of sizes. The cards can corrupt easily if you remove them improperly from the card reader, which can cause you to lose the information you have stored on it. When the SD card does not work well with the electronic device, it will need to be reformatted to fix the malfunction. Formatting the SD card will completely erase any data that you have stored on it.

Things You'll Need

  • Card reader

Windows

Step 1

Place the SD card into your computer's card reader. If you do not have a card reader, you can purchase a USB adapter card reader.

Step 2

Click "Start" and select "My Computer" or "Computer."

Step 3

Right-click on the drive associated with the SD card. Select "Format" from the options that appear.

Step 4

Click "Start" and wait for the format to complete before you remove the card.

Mac

Step 1

Insert the SD card into the card reader. Click on the "Macintosh HD" on the desktop.

Step 2

Open the "Applications" folder. Click the "Utilities folder."

Step 3

Select "Disk Utility." Look on the left side of the window to see the drives connected to the computer. Select the drive associated with the SD card. Click the "Erase" tab.

Step 4

Check to make sure that you select "MS-DOS" for the file format. Click "Erase" to format the SD card, and do not remove it until it finishes the formatting process.

Tips & Warnings

  • It is recommended to format the corrupted SD card in your camera or electronic device. Follow the instructions that came with the device to format the SD card properly.