- It’s exactly the same procedure if you need to reformat a flash drive on a Mac. How to format a USB drive on a Mac. Plug the drive into a USB socket (if you have a recent MacBook or MacBook Pro that only has USB-C connectors, you’ll need a USB-C to USB-A adaptor). Open a new Finder window and click on the drive.
- Plug-in your drive into the computer’s USB port. Open up File Explorer and right-click on the drive. Choose Format.; In the File System dropdown, choose exFAT. Possible you might get NTFS or FAT32.
Most of the time formatting a flash drive is a very simple decision. There are only two situations where you should take consideration on what format to use. Here are the details:
How to Format USB Drive in Windows or Mac. After choosing the best format for USB drive according to your needs, you might start to wonder: how do I format USB drive to NTFS/FAT32/exFAT/EXT 2,3,4/HFS+ in Windows operating system or Mac? Well, don't worry. If you need to format USB drive to NTFS/FAT32/exFAT/EXT 2,3,4/HFS+ file system, please.
Note: This article is focused towards Windows and Mac operating systems.
The file formats available for a flash drive are:
- FAT (also called FAT16)
- FAT32
- exFAT
- NTFS
- HFS (Mac only)
Flash drive manufacturers format a drive as either FAT or FAT32. Any device of 2GBs or smaller will be formatted as FAT and any USB over 2GBs will be formatted as FAT32.
These two formats are the best file system for removable drives like flash drives because they support the quick disconnect function and chances are very slim you will destroy the device or files if you unplug the USB without using the Eject function (in Windows) or Un-mount function (in Mac).
The one huge limitation with FAT and FAT32 is the single file size limitation. If a single file is larger than 2GBs you need to have the device as FAT32. If you have a single file bigger than 4GBs then you must use NTFS or exFAT. Typically these large files are either video files or restore image files (for restoring a computer operating system from a single image file).
So what if you have a file bigger than 4GBs? Well, you have to decide what is the lesser of two evils.
Here is the problem. If you format as NTFS it works great on all Windows machines, but Macs can only read from the device, they cannot write to it. There are some plugins to help the Mac deal with NTFS but our experience proves those add-ins to be unstable.
If you format it as exFAT all computers (Windows and Macs) will see the drive except for Windows XP.
So you must decide to accommodate the Windows XP users or accommodate the Mac users.
Given that Mac computers are on the rise, your best option is to format the drive as exFAT. If there is a Windows XP user out there, they can download the plugin from Microsoft to allow an XP operating system to see the exFAT device without wanting to format it. Also keep in mind that XP is a 15 year old operating system (at the time of this post) and Microsoft no longer supports the OS.
As a closing note, the NTFS file system is not ideal for flash drives because it’s a dynamic file system. Meaning information can be writing to the flash drive at times in which you think the USB is idle. So in a situation where you disconnect the USB while there is a write change taking place to the file system, there is a good chance you will corrupt the data. Not good.
If you have more questions about formatting USB devices, please Contact Us.
Windows update for XP users to read exFAT USB devices HERE
Tags: exfat, usb
Matt LeBoff
Nowadays, when you buy a USB drive, you can use it right out of the box with your Mac. However, unless it’s been designed for use with a Mac, it won’t be formatted using macOS’ preferred file system (either Mac OS Extended or APFS, depending on which version of macOS you’re running).
That’s because most of the computers in the world run Windows, and Windows uses a different file system, usually one known as Fat32. Drives formatted as Fat32 can be read from and written to by macOS, but it’s not optimal and you’re more likely to run into problems than if you use macOS’ native format. So, if you’ve bought a USB drive that’s formatted as Fat32, or any other format other than Mac OS Extended (also known as HFS+) or APFS, here’s how to format a USB drive on Mac. It’s exactly the same procedure if you need to reformat a flash drive on a Mac.
How To Format Exfat
How to format a USB drive on a Mac
1. Plug the drive into a USB socket (if you have a recent MacBook or MacBook Pro that only has USB-C connectors, you’ll need a USB-C to USB-A adaptor).
2. Open a new Finder window and click on the drive. Make sure it has no files on it that you need. The process of reformatting it will wipe all the data from it.
3. Once you’ve copied any files you need from the USB drive to your Mac, go to Applications>Utilities and double-click on Disk Utility.
4. Click on the USB drive in the sidebar and then choose Erase from the toolbar at the top of the window.
5. In the window that drops down type a name for the formatted drive in the box next to Name.
6. Choose a format from the dropdown menu.
7. If you have previously stored sensitive data on the drive, click the Security tab.
8. Choose a security level using the slider. The further to the right you move the slider, the more ‘passes’ the erase tool will make and the more securely files will be deleted. However, it also increases the time it takes to format the drive quite considerably.
9. Click Ok then click Erase.
Tip: You don’t need to erase a whole drive to delete files securely. If you have confidential files or sensitive data you need to remove from your Mac completely, you should use CleanMyMac’s File Shredder. It’s specifically designed to securely delete sensitive data and will render it unrecoverable. You can download CleanMyMac X for free here.
Which format to choose?
If your Mac is running macOS High Sierra or later, you have two options for file formats: APFS and Mac OS Extended. Which should you choose? The key point is that disks formatted as APFS won’t be recognized by Macs running versions of macOS older than High Sierra. So if you think you might need to plug the USB drive into a Mac running an older version of macOS, format it as Mac OS Extended.
APFS is optimized for SSD (solid state drive) such as flash drives, so if you reformat a flash drive on a Mac, you should definitely choose APFS (unless you plan to use it with a pre-High Sierra Mac, of course). Even on hard drives, however, APFS is faster and more reliable than Mac OS Extended.
Finally, if you plan to use the USB drive as a destination for Time Machine backups, choose Mac OS Extended. Time Machine can’t currently back up to an APFS disk and if you select one for use with Time Machine, it will offer to reformat it as Mac OS Extended. You can, however, backup an APFS formatted disk to a Mac OS Extended Time Machine drive.
Format Drive Exfat Windows 10
How to format a USB drive to FAT32 on a Mac
The main reason for formatting a USB drive as Fat32 on a Mac is that you want to be able to use the drive on a Windows PC, as well as a Mac — perhaps to transfer files between the two machines. You may also be preparing the drive for use as, say, a storage device for a media player or to record TV programmes on a TV with a USB port.
The fact that Fat32 can be read from and written to on both Mac and Windows makes it very versatile. However, there is a significant limitation — individual files have a maximum size of 4GB. So, if you’re using the USB drive to store large video files, you may run into trouble. There is a solution, however, exFAT. Unlike FAT32, exFAT doesn’t have a maximum file limit. Better still, it can be read from and written to on any Mac running Mac OS X Snow Leopard or later and on Windows.
To format a USB drive in FAT32 or exFAT:
1. Plug the USB drive into your Mac.
2. Go to Applications>Utilities and launch Disk Utility.
3. Click on the USB drive in the sidebar in Disk Utility.
4. Click Erase in the Disk Utility toolbar.
Format Usb Drive To Exfat
5. Type in a name for the formatted disk.
Exfat File Format
6. Click on the Format menu and choose either MS-DOS (FAT32) or ExFAT.
7. Click Erase.
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Your USB drive will now be erased and re-formatted as either FAT32 or ExFAT, depending on the format you chose in step 6.
How to manage your drives easily
If you look for a quick and easy way to manage your drives, try using CleanMyDrive 2. With its help, you can drag-and-drop files directly to any drive, clean hidden junk from external drives, and check disk stats. It works for all drives, including USB drives, SSD, SD cards, external hard drives. All the drives will be at hand in the menu bar, so you can get to see types of drives you have and manage them easily. CleanMyDrive is absolutely free to use, so download it on the Mac App Store and enjoy!
It’s very easy to format a USB drive on a Mac using Disk Utility. There are a couple of things you should keep in mind, however. The first is that when you format and disk, you will erase all the data currently on it. So if you need that data, make sure you copy it onto another disk before you start. Secondly, there are several formats to choose from, each with advantages and disadvantage. Use the guide above to help you decide which is right for you.