Formatting a new USB Stick

Here are the detail tips to format USB to FAT32 now:

1. Connect the USB flash drive to your Mac computer.

2.Go to Applications > Utilities > Double click and open Disk Utility.

3. Select your USB flash drive on the sidebar, choose Erase.

4. Rename the USB flash drive, choose the format as MS-DOS (FAT) for Format, Master Boot Record for Scheme.

Then click Erase.

Wait for the process to complete, then you’ll get an empty new USB flash drive with FAT32 as the file system. You can reuse it for saving data again.

FWIW, nearly all USB Flash Drives come pre-formatted as FAT32.

You're welcome, glad I could help.