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 USB3.0 StoreJet (external-HDD) cannot work properly! Why can’t the Transcend Elite fully back up files from my C: drive? Can portable external hard drives (StoreJet) be used on smartphones/tablets? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started