This disk preparation setup process is called “ formatting.” Below, we’ll show you how to set up a USB drive as exFAT for both Windows and Mac.
That file system is called exFAT, and it’s designed for flash media cross-platform compatibility. If you’re frequently using both Macs and PCs with the same drive, the ideal solution is to configure a USB drive with a file system that both operating systems can read.
And likewise, if you format a USB drive as NTFS on Windows, Macs can read it but not write to it (although there are some ways around it). So here’s the problem: If you format a USB drive as APFS on a Mac, Windows 10 won’t read it without third-party tools (and will actually ask to format it).
