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).
It will take a while for Catalina to be written to the flash drive as a bootable installer. Once done, restart the Mac and immediately hold down the Option key. Choose the flash drive as the startup volume. When it gets to the work screen, run Disk Utility from the top menu bar. Choose to convert the main drive to APFS. Create a Bootable Mojave USB Installer Flash Drive in Mac OS X 10.14 - Duration. How to Format a Flash Drive on a Mac. How to Install macOS 10.15 Catalina on an Unsupported Mac. Format USB flash drive/external hard drive and permanently wipe data on macOS Catalina Step 1: Download DoYourData Super Eraser for Mac. Download and install this disk formatting tool for macOS Catalina. Step 2: Format and wipe the USB flash drive/external hard drive on macOS Catalina.
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 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.
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.
5. Type in a name for the formatted disk.
6. Click on the Format menu and choose either MS-DOS (FAT32) or ExFAT.
7. Click Erase.
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.
These might also interest you:
Page Content:
macOS Big Sur 11 is the biggest update for Apple Mac operating system. If you are looking for a solution to formatting hard drive or memory card, USB flash drive etc on macOS Big Sur, you've come to the right place. In this article, we will show you three methods to help you easily and quickly format a hard drive or external device after upgrading macOS Big Sur, meeting the various needs of format.
Method 1. Format hard drive or external device with Disk Utility.
Disk Utility is a built-in disk management tool in macOS including macOS Big Sur. Just open it on your Mac, then select the hard drive or device you want to format and click on Erase button. This tool will help you securely and easily format the hard disk drive or memory card, USB flash drive, portable hard drive on macOS Big Sur. However, the formatted data is still can be recovered by data recovery software.
You don't need to install third-party disk formatting software. Disk Utility can meet the normal format needs of you. Disk Utility even can help you format a corrupted memory card, USB flash drive.
Method 2. Format and wipe hard drive with AweEraser.
As said above, the lost data can be recovered even the hard drive has been erased by Disk Utility. In some cases, you need a solution to permanently wipe your sensitive data. For example, before you sell or donate a portable hard drive, you'd better permanently erase all your private files in the portable hard drive to prevent potential data recovery.
AweEraser for Mac is a powerful data erasure application for macOS including macOS Big Sur. You can use this application to format and wipe your hard drive to securely and permanently erase all your sensitive data.
- Once your data is erased by AweEraser for Mac, the erased data is gone forever, can't be recovered by any data recovery software.
- The erasure process is 100% safe, will not cause any damage to your HDD, SSD or external device.
- Certified data erasure methods, such as: HMG Infosec Standard 5, Baseline, DOD 5220.22-M, U.S. Army AR380-19, Peter Gutmann's algorithm.
Now, you can follow the steps below to format and wipe hard drive on macOS Big Sur:
Step 1. Download and install AweEraser for Mac on your Mac computer, then run it from Launchpad.
Powerful and easy-to-use data eraser & junk cleaner software for macOS Big Sur.
:max_bytes(150000):strip_icc()/A6-FormataUSBFlashDriveonMac-annotated-ffcfa0e922c942eea47b4c496f40b157.jpg "Drive")
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).
It will take a while for Catalina to be written to the flash drive as a bootable installer. Once done, restart the Mac and immediately hold down the Option key. Choose the flash drive as the startup volume. When it gets to the work screen, run Disk Utility from the top menu bar. Choose to convert the main drive to APFS. Create a Bootable Mojave USB Installer Flash Drive in Mac OS X 10.14 - Duration. How to Format a Flash Drive on a Mac. How to Install macOS 10.15 Catalina on an Unsupported Mac. Format USB flash drive/external hard drive and permanently wipe data on macOS Catalina Step 1: Download DoYourData Super Eraser for Mac. Download and install this disk formatting tool for macOS Catalina. Step 2: Format and wipe the USB flash drive/external hard drive on macOS Catalina.
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 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.
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.
5. Type in a name for the formatted disk.
6. Click on the Format menu and choose either MS-DOS (FAT32) or ExFAT.
7. Click Erase.
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.
These might also interest you:
Page Content:
macOS Big Sur 11 is the biggest update for Apple Mac operating system. If you are looking for a solution to formatting hard drive or memory card, USB flash drive etc on macOS Big Sur, you've come to the right place. In this article, we will show you three methods to help you easily and quickly format a hard drive or external device after upgrading macOS Big Sur, meeting the various needs of format.
Method 1. Format hard drive or external device with Disk Utility.
Disk Utility is a built-in disk management tool in macOS including macOS Big Sur. Just open it on your Mac, then select the hard drive or device you want to format and click on Erase button. This tool will help you securely and easily format the hard disk drive or memory card, USB flash drive, portable hard drive on macOS Big Sur. However, the formatted data is still can be recovered by data recovery software.
You don't need to install third-party disk formatting software. Disk Utility can meet the normal format needs of you. Disk Utility even can help you format a corrupted memory card, USB flash drive.
Method 2. Format and wipe hard drive with AweEraser.
As said above, the lost data can be recovered even the hard drive has been erased by Disk Utility. In some cases, you need a solution to permanently wipe your sensitive data. For example, before you sell or donate a portable hard drive, you'd better permanently erase all your private files in the portable hard drive to prevent potential data recovery.
AweEraser for Mac is a powerful data erasure application for macOS including macOS Big Sur. You can use this application to format and wipe your hard drive to securely and permanently erase all your sensitive data.
- Once your data is erased by AweEraser for Mac, the erased data is gone forever, can't be recovered by any data recovery software.
- The erasure process is 100% safe, will not cause any damage to your HDD, SSD or external device.
- Certified data erasure methods, such as: HMG Infosec Standard 5, Baseline, DOD 5220.22-M, U.S. Army AR380-19, Peter Gutmann's algorithm.
Now, you can follow the steps below to format and wipe hard drive on macOS Big Sur:
Step 1. Download and install AweEraser for Mac on your Mac computer, then run it from Launchpad.
Powerful and easy-to-use data eraser & junk cleaner software for macOS Big Sur.
Step 2. Select data erasure mode - Erase Hard Drive, this mode will help you format the hard drive and permanently erase all data from your hard drive.
Step 3. Select the target hard drive, then click on Erase button. Once the process gets finished, all data on the hard drive will be gone forever, can't be recovered by any data recovery method.
This disk formatting method will help you format and wipe your hard drive. So, before you sell, donate or trade in your Mac/Device, you can choose this method to permanently erase your sensitive data so that nobody can restore your private information.
Download Catalina Mac
AweEraser for Mac also can help you shred files on macOS Big Sur, wipe free disk space, uninstall unwanted applications, clear web browsers' cookies, fix corrupted memory card, USB flash drive, etc.
Method 3. Format hard drive with AweCleaner for macOS Big Sur.
Mac Catalina Iso
AweCleaner for Mac is a junk cleaner & disk management tool for macOS Big Sur. It offers a disk manager tool to help you quickly format hard drive or external device. Like method 1, the formatted data also can be recovered by data recovery software.
Just open AweCleaner for Mac > choose tool ‘Disk Manager' > Select the hard drive > Click on Format button > the selected hard drive will be quickly formatted to exFAT, HFS+, etc.
We highly recommend AweCleaner for Mac to macOS Big Sur users as it is an excellent disk cleaner & optimization tool. It can help you quickly remove junk data, uninstall unwanted applications, manage your Mac after upgrading to macOS Big Sur.
All-in-one Mac cleaner & manager to optimize, clean and speed up your Mac in easy way.
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