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 Can Transcend’s portable HDD be used for TV recording? Why does Transcend include the Proposition 65 warning? How do I repair bad sectors? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started