Formatting External Hard Drives For Mac And Windows

Please see below on how to reformat your external hard drive on Mac and Windows. DISCLAIMER: Please keep in mind that reformatting will result in the loss of all the data on the hard drive so make sure you back up your data elsewhere before starting. Mar 22, 2012 - Compare the different options for formatting an external hard drive to work with Windows and Mac. And, no: the answer isn't always FAT32.

How to format internal and/or external drive to work properly on Mac and Windows computers? External data storage devices such as USB flash drives, external Hard Disk Drives (HDDs), and Solid State Drives (SSDs) provide one of the easiest ways to transfer files between separate computers without accessing the Internet.

This option is often used when attempting to move very large files. The method is also chosen by people who work with media data that imposes various limitations and automatic optimizations when transferring via Internet.

Despite the advantages of using external data storage to transfer content, some experienced users encounter problems caused by the difference between operating systems. This article addresses these issues. A common issue discussed by users within various technical support forums is that of USB flash drives not working on their computers. This is a cross-platform problem that Windows and macOS users often experience. For example, a photographer may provide you with a USB flash drive with stored photos and videos from your birthday party, but you cannot access them on your system. This is the result of differences between operating systems on computers. Windows and macOS use separate file system formats.

PCs with Windows operating systems use New Technology File System (NTFS) while Macs with macOS operating systems use Hierarchical File System (HFS+). By default, USB flash drives and external storage are formatted with the NTFS file system - this works flawlessly on PCs, while Mac computers are able to read data in the format, but struggle to write using this type of storage. Fortunately, there is a simple solution: format your external storage with the File Allocation Table (FAT32) or Extended File Allocation Table (exFAT) file system. In this article, we describe the differences between these two file systems and how to format external storage using a Mac computer. Table of Contents:. It is recommended to run a free scan with Spyhunter - a tool to detect malware and fix computer errors. You will need to purchase the full version to remove infections and eliminate computer errors.

Which file system to choose - FAT32 or exFAT? As mentioned above, both file systems are compatible with Windows or macOS/OS X operating systems.

Naturally, the question is: which should you choose? To make the choice easier, we describe both file systems and their features below. Starting with FAT32 on a Mac, known as MS-DOS (FAT), this file system is fully compatible with all versions of Windows and Mac operating systems. Therefore, even the oldest versions of operating systems such as Windows XP SP1 and OS x 10.5 Leopard are compatible. As well as computers, the FAT32 file system is supported by PlayStation 3, Xbox 360, and most cameras. This particular file system does contain file size restrictions.

For example, the maximum size of supported files is 4GB (you cannot write files larger than 4GB). Also, you cannot create a startup drive for Mac computers within storage media that uses the FAT32 file system. If, however, you are not planning to use external storage to transfer large files or create any executable partitions (such as a Mac startup drive) the FAT32 file system might be an option, since this format is supported in all versions of the operating system. ExFAT is a newer file system format and has the biggest advantage when compared with FAT32: there are no restrictions on file or partition sizes stored.

Therefore, you can write a file of, for example, 1TB size and create partitions of 5TB within the device. Despite this improvement of available data size, some older versions of operating systems are no longer compatible with this file system format. The oldest versions of operating systems compatible with exFAT are listed below:. Mac OS X Snow Leopard 10.6.5 or later. OS X Lion.

Windows XP SP2 or later (with an additional update for exFAT support). Windows Vista SP1 or later. Windows 7 Unfortunately, as well as some old versions of operating systems, the exFAT file system format is not supported by various cameras, video games consoles, and other devices able to read and/or write to external storage. If you will be using a USB flash drive or external storage device with any of these, the required format is FAT32. Otherwise, if the device is to be used only with computers with modern versions of operating systems, the recommended format is exFAT. Format the drive with Mac computer Firstly, bear in mind that formatting the drive will erase all content stored on it. Mac computers are capable of formatting any storage device (internal or external) such as HDD/SSD, USB flash drive, and external storage.

Solvusoft: Microsoft Gold Certified Company Recognized for best-in-class capabilities as an ISV (Independent Software Vendor) Solvusoft is recognized by Microsoft as a leading Independent Software Vendor, achieving the highest level of completence and excellence in software development. This tool will download and update the correct Lexmark Prevail Pro705 driver versions automatically, protecting you against installing the wrong Prevail Pro705 drivers. Lexmark prevail pro705 printer driver for mac. Solvusoft's close relationship with Microsoft as a Gold Certified Partner enables us to provide best-in-class software solutions that are optimized for performance on Windows operating systems.

Even if the Mac is unable to mount the storage, following this method will enable you to format the storage. Begin by connecting the storage device to your Mac, and then launch Disk Utility using Spotlight. Simply use the keyboard shortcut of Command and Spacebar, type Disk Utility, and then press return. Alternatively, open Finder and go to Applications, open Utilities, and then launch Disk Utility. Select the drive you wish to format from the list in the left sidebar of the Disk Utility window. Then click the Erase button at the top of the window, in the new pop-up window, and type the name of drive.

Then click the drop-down menu beside Format and select MS-DOS (FAT) - the FAT32 file format - or exFAT. These formats are described above. If you are not planning to use this drive as the Windows startup disk or use it with the oldest version of the operating system, do not change the Scheme. Select Master Boot Record. Finally, when all preferences are set, click the Erase button. The formatting process duration depends on size and type of the drive. A hard disk drive will take longer to format than a flash drive.

NOTE: formatting will erase all existing data on the drive. Video Showing how to format drive for Mac and Windows computers.

• Justin Krajeski

If you buy an external drive—such as one of our recommended desktop hard drives, portable hard drives, or USB 3.0 flash drives—you may need to reformat it to work with your operating system of choice, since different operating systems use different file systems to process data.

Although it’s true that any drive is compatible with both Windows and macOS, most drives come preformatted for Windows out of the box. If you use Windows, chances are good that you won’t need to reformat your external hard drive—unless you buy it secondhand, or you plan on switching between operating systems, your drive should come ready to use. If you use a Mac, the likelihood that you’ll have to reformat the drive is higher. But fear not: The process is simple.

Choosing the right format for your drive

Non-Linux computers can use four main file systems: NTFS, HFS+, FAT32, and exFAT. So what do those four file systems mean, and which one is right for you?

• If you plan to use your drive for File History backups on a Windows computer, and you use only Windows, stick to NTFS (New Technology File System). NTFS is native to Windows, and most hard drives are preformatted for this file system. macOS and Linux, however, can only read files stored on such a drive; they cannot write to an NTFS-formatted drive. NTFS has huge file and partition size limits that you won’t hit; that makes it a better choice than FAT32, which has a 4 GB size limit per file. Many backup archives and video files are larger than 4 GB.
• If you plan to use your drive for Time Machine backups on a Mac, and you use only macOS, use HFS+ (Hierarchical File System Plus, or macOS Extended). A drive formatted this way will not mount on a Windows computer without additional software. Like NTFS, the HFS+ file system has file and partition size limits that are much bigger and more suitable for modern use than those of FAT32.
• FAT32 (File Allocation Table 32) is an older file system that both Windows machines and Macs still support. FAT32 was introduced in Windows 95 in 1997, but it remains useful because nearly every system can use it. Unfortunately, it isn’t any good for storing movies and other large files: FAT32 has a size limit of 4 GB per file, so your files have to be small.
• If you need to transfer files larger than 4 GB between Mac and Windows computers, exFAT (extended File Allocation Table) is the best option, although it doesn’t work with File History or Time Machine. exFAT works on both macOS and Windows, and it doesn’t have the file size limit that FAT32 does, so you’ll be able to back up movies and other large files.
• If you want to use a single external hard drive to back up both File History and Time Machine, you can partition it so that some of the drive is NTFS and some is HFS+. First, partition the drive using Disk Utility with macOS, and (using our walkthrough below) format one part as HFS+ and the other as FAT32; then, plug the drive into Windows and reformat the FAT32 portion as NTFS. Now your computer will see your single drive as multiple, smaller drives. Make sure to leave plenty of room for future backups on both partitions. It’s possible, but tricky, to change the size of a partition later on in Windows and macOS; we recommend backing up the data on your drive before attempting the task, since it’s possible to wipe your drive doing this.

Now that you’ve figured out those differences, it’s time to reformat your hard drive. Reformatting will delete all the data stored on the drive, so if you need to reformat, do so as soon as you buy the drive. If you already have data stored on the drive, back that data up elsewhere, reformat the drive, and then put your data back on the drive.

Reformatting your drive in Windows

To reformat a drive on Windows:

1. Plug in the drive and open Windows Explorer.
2. Right-click the drive and choose Format from the drop-down menu.
3. Select the file system you want, give your drive a name under Volume label, and make sure the Quick Format box is checked.
4. Click Start, and the computer will reformat your drive.

When you’ve completed the process, you can open the external drive in Windows Explorer.

Reformatting your drive in macOS

To reformat your drive for macOS:

1. Plug in the drive and open the Finder.
2. Click the Go menu, select Utilities from the drop-down menu, and open Disk Utility.
3. Choose your external drive from the left sidebar, and click Erase.
4. Give your drive a name and select the file system you want from the Format drop-down.
5. Click Erase, and the system will reformat your drive.

When you’ve completed the process, you can open the external drive by clicking on the drive’s icon on the desktop of your Mac.

Note: Using the formatting options above on a drive that has data on it may not be enough to prevent some of that data from being recoverable. If you're formatting a drive in order to give it away, sell it, or recycle it, make sure to securely erase the drive to prevent data recovery.