Most of the time this is a disc format problem.
Format a USB flash drive using MacOS Disk Utilityįor those of you who are used to transferring files between different devices, you have certainly noticed that some USB sticks offer lower storage capacities than those displayed by the manufacturer. In this article, we will detail the different steps required to format a USB drive from a Mac computer. Problem, some of its storage accessories need to be formatted before they can be used to store files on them.