Things You'll Need
Instructions
Remove the micro SD card from your TTDS cartridge.
Insert the card into the micro SD to SD card adapter. Most micro SD cards come with an adapter, but you can purchase them separately as well.
Insert the adapter into the SD card reader on your PC. The computer will detect the card as a flash drive.
Click the "Start" button on the Windows task bar and choose "Computer." The TTDS memory card will appear under "Devices with Removable Storage."
Right-click the new drive and select "Format..."
Choose "FAT" in the "File system" drop down menu and click "Start" to reformat the card.