What are some functional differences between the Windows and the Mac versions of Transcend Elite? Category : Software / Firmware / Applications Note: 1. To have the external hard disk support both Windows and Mac operating systems, we recommend formatting the hard disk into FAT32 or exFAT format. 2. The disk lock/unlock function for MacOS version is still under evaluation. Is the answer helpful? Related Why are there files in my new StoreJet (external-HDD)? What are these folders/files for? Why should I plug in both two large ends of the Y-cable when using my StoreJet in a USB2.0 host? Does it matter if I only plug in one? ESD220C has drop frame issue in non Windows 10 operating system. Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started