How do you reformat a thumb drive on your MacBook?

To reformat a thumb drive on your MacBook, first connect the drive to your computer. Open "Disk Utility," which you can find in the Applications > Utilities folder or by searching via Spotlight. Select the thumb drive from the list on the left, then click "Erase" at the top. Choose your desired format (like exFAT or Mac OS Extended) and click "Erase" again to complete the process.