Where can I find the place to change the setting?

It's a settings preference that is defaulted to not auto delete. You need to change the setting. They switched it because based on metrics, most people were setting it to not automatically delete.

Ever since the new gopro studio update, whenever I place my sd card into my sd card reader, gopro studio stopped automatically deleting the files off the card. It has worked perfectly before the update and suddenly im experiencing issues. Anyone else experiencing these same issues? Could it possibly a problem on my end or gopro's end?

Gopro Studio stopped deleting files off of SD card