Things You'll Need
Instructions
Connect your MicroSD card to your computer, with the USB adapter.
Download the most recent version of the Acekard operating system, known as AKAIO.
Unzip the downloaded file, and place it on your desktop.
Right-click the MicroSD card in the ̶0;My Computer̶1; window on your computer, and select ̶0;Format.̶1; Ensure the FAT32 file type is selected, and hit ̶0;OK.̶1;
Drag the unzipped AKAIO file directly to the Micro SD card. Once the AKAIO system is on the drive, you can drag your games to the card in order to access them on the Nintendo DS.
Remove the card from the USB adapter, and plug it into the Acekard.
Insert the Acekard into the DS, and turn on the system. The games you dragged to the card will be accessible from the AKAIO menu.