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#Mac disk utility formating hard drive for windows mac os x
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Mac OS X won’t let you create a FAT32 partition larger than 2TB so if your drive is larger than that, you’ll need to divide the available drive capacity into multiple partitions. To format a drive as FAT32 from a Mac, follow these simple steps.Ģ.

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Conversely, Windows 7 can’t read and write to drives formatted as HFS+–also known as Mac OS Extended (journaled)–unless you install third-party software such as Paragon’s.

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Macs running Snow Leopard or Lion can read from drives formatted as NTFS, but they can’t write to such drives unless you install a third-party driver or muck about in the Terminal. Windows prefers to use NTFS (which stands for New Technology File System, though it has been around for nearly 20 years now). Finally, Mac OS X’s Time Machine backup utility won’t work with FAT32. When formatting partitions, Windows 7’s Disk Management utility won’t let you create one that’s larger than 32GB, whereas Mac OS X Lion can create partitions as large as 2TB using its Disk Utility application. So if you work with bulky video clips, for example, adopting FAT32 may not be a good idea. FAT32 imposes a size limit of 4GB on single files. The chief drawbacks of FAT32 involve file and partition size limitations. Though this format has some limitations, it enjoys nearly universal support from active platforms, including Mac and Windows operating systems, and many gaming and Linux OSs. APM is an older, Mac-only partition scheme.Looking to share an external hard drive between a Mac and PC? The best way to do it is with a drive formatted as FAT32. You’ll also be asked to choose between a partition scheme: GUID Partition Map, Master Boot Record, or Apple Partition Map. RELATED: What's the Difference Between GPT and MBR When Partitioning a Drive? It’s not natively supported on many Linux distributions, but you can install exFAT support on Linux.įor external drives, it almost always makes sense to format in ExFAT, unless you’re using the drive for Time Machine. ExFAT is the ideal cross-platform file system. You should use this file system if you may share the drive with Windows PCs and other devices like the PlayStation 4 and Xbox One consoles.

ExFAT: ExFAT is almost as widely compatible as older FAT file systems, but doesn’t have the limitations.

MS-DOS (FAT): This is the most widely compatible file system, but it has some limitations–for example, files can only be 4GB or less in size each. Avoid this file system unless you have a device that requires FAT32.

OS X Extended (Case-sensitive, Journaled, Encrypted): This is the same as the standard OS X Extended (Case-senstiive) file system, but with encryption.

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You’ll have to enter a password, and you’ll need to provide that password whenever you connect your drive to your Mac. OS X Extended (Journaled, Encrypted): This is the same as the standard OS X Extended file system, but with encryption.This option exists because it matches the traditional behavior of UNIX and some people might need it–don’t select this unless you know you need it for some reason. By default, Mac OS X doesn’t use a case-sensitive file system.

OS X Extended (Case-sensitive, Journaled): On a case-sensitive file system, “file” is different from “File”.This file system is necessary if you plan on using the drive for Time Machine backups–otherwise, you’ll want to use exFAT for maximum compatibility.

OS X Extended (Journaled): This is the default, but it’s only natively supported on Macs.

RELATED: What's the Difference Between FAT32, exFAT, and NTFS? You’ll need to choose between several file systems: You’ll be asked to provide a name for the disk, which will appear and identify the disk when you connect it to a Mac, PC, or another device. Select the drive by clicking its name.Ĭlick the “Erase” button after selecting the entire drive to erase the entire drive and create a single partition on it. Your connected drives will appear under “External” in the Disk Utility’s sidebar. You can also open a Finder window, select “Applications” in the sidebar, and head to Utilities > Disk Utility.