To clear an SD card, format it using a computer. Once the computer detects the card, you can format it and then remove the data.
- Insert SD card into computer via port or card reader
The computer can detect the card as soon as it's inserted if it is properly connected.
- Locate the drive assigned to the card by your computer
Each drive is given a designated name. Check to make sure that you have selected the correct drive.
- Right-click the drive, and select Format
Once you select format, a drop-down menu appears. Deselect Quick Format to ensure that all data is deleted properly. Select Start to begin formatting. This clears the card of all data.