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 is my new external hard drive not working on my computer? Can I use the Transcend external HDD / SSD / high-speed USB on my PS4 or Xbox? How to format the flash drive to NTFS in Windows XP? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started