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 is my new external hard drive not working on my computer? Why can't my Elite App log in to iCloud with the Apple ID verification code? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started