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 does the USB external device slow down under Windows 10 system? How to fix my portable solid-state drive (ESD)'s plodding write speed? Can Transcend’s portable HDD be used for TV recording? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started