Fortunately, you could create an external hard disk which is compatible with both Windows and Mac OS with the help of this article. However, Windows was mainly optimized for NTFS (New Technology file system) format, on the other hand, APFS was created for the Mac OS.Īs we all know NTFS is not compatible with Mac and similarly APFS does not get along with Windows. An external hard drive that supports both Windows and Mac operating systems can be extremely helpful to users who work on both the operating systems.