Format External For Mac

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How to format an external hard drive or USB flash on a Mac computer?

How To Format External For Mac

With technology growth, use of data storage formats such as CDs and DVDs are on the decline, but physical storage remains useful, especially if you do not have an Internet connection or file sizes are large. In these circumstances, external hard drives help, but unfortunately these are not always reliable. Apple products are usually able to read Windows-based formats such as MSDOS, FAT, FAT32, ExFat, and NTFS. In most cases, however, Mac machines can only read these formats and are unable to write or change data.

Cannot format external hard drive on Mac OS 10.5! If the formatting process on Mac OS 10.5 has failed but the drive has been successfully formatted on a PC or another computer previously, try following: Open the disk utility and select the external drive. Choose '1 Partition' from the volume scheme and then click on 'Options'. The best format for video production is exFAT. The maximum individual file size for exFAT is 16 EB. 1 EB, or exabyte, is 1 billion GB. That said, if you are using smaller file sizes — FAT32 can suffice. Format Hard Drive (Mac) 1. Connect the external hard drive to the computer. This is the process for formatting any External Hard Disk Drive to work with an Apple Mac running OS Mojave or High Sierra. The process is also the same for the MacBook Pro, MacBook Air, iMac Pro, iMac, and MacMini computers. It doesn’t matter what brand of hard drive you buy. It all comes down to the formatting applied to the drive.

The best way to solve this issue is to reformat your external drive. Changing an external drive or USB flash key format is useful if you are planing to use the device only with Apple products, and especially if you wish to store a Time Machine backup file or create a bootable drive. These are not the only reasons to format your drives - they can often show less space than is actually available or require cleaning of junk files. By formatting your external drive, you also can choose an encrypted file system, which decreases the chance of data or file theft. In this article, we describe recommended file system formats for Mac computers and how to perform a reformat.

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What Format External Drive For Mac

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How to format an external drive using disk utility?


Formatting an external hard drive or USB flash key is straightforward. Note: before you start formatting, bear in mind that all data from the drive will be erased, so ensure you have made a copy of your data. Once you have the copy, follow the guide below.

First, connect the drive to the Mac and launch Disk utility, which is under Utilities located within Applications. Find your drive in the left sidebar of the Disk Utilities window, select it, and click the Erase button.

In the pop-up window, choose a format from the drop-down menu. We recommend Mac OS Extended (Journaled). In the second line, enter your drive name or leave it unchanged.

Click the Erase button to confirm the formatting process. The duration of the process depends on the size of the drive and amount of data contained on it. When complete, the external drive or USB flash key will be empty, fully compatible with Mac OS, and ready for work.


If you are still experiencing problems with your external drive, look for a possible solution in this article, in which we describe the most frequent issues when using external drives.

Format External For Mac

Format External Hard Drive For Mac

Video Showing how to format external hard drives on a Mac: