Windows is NTFS or FAT and Mac is HFS Plus, mostly called Mac OS Extended. Its boring stuff but the basics are, Windows(PC’s) and OsX(Mac) use different file systems. You can read more about filesystems here. There are built in limits to different file systems.You could have a separate partition for video work for example Partitioning a hard drive splits it into 2 or more separate drives. Eject the hard drive and bring it to a Mac. All usb sticks come pre-formatted to work on both Pc’s and Mac’s, but larger external hard drives can come un-formatted, when plugged into a PC Windows will offer to format it for you, DON’T do this.Ĭlick No. Formatting a Hard drive to work on both Pc and MacĮxternal hard drives are a must have for any student doing computer based work.