You can format the drive from either the Mac or the Windows machine.
How to make external hard drive compatible with Mac and PC? Thus, many users would like to use exFAT instead of FAT32 to make an external hard drive for mac and windows interchangeable. However, FAT32 has a maximum 4GB file size limit whereas exFAT can work with files as large as 16EB. So, if you want to use an external hard drive on both Windows and Mac, you need to format it to a filesystem that is compatible with Windows PC and Mac.īoth FAT32 and exFAT can be used on Windows PC and Mac. Windows PC and Mac use different filesystems. Need to format an external hard drive for Mac and Windows