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 How to fix my portable solid-state drive (ESD)'s plodding write speed? USB3.0 StoreJet (external-HDD) cannot work properly! What should I do with the unconfigured disk, and how to partition my StoreJet (external-HDD) into several disks? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started