A USB flash drive or other removable data storage medium is widely used for storing and transferring data from an iMac, MacBook or Mac Mini. Generally, when you insert in a USB flash drive, it will be mounted in Disk Utility and on Desktop. Then you can read and write to the USB drive. Mar 12, 2020 Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended. Open Terminal, which is in the Utilities folder of your Applications folder.
If you’re using both Windows and macOS, you’ve to deal with when mac refuses to boot. The reason behind can be from a number of things that could go wrong. This includes system failure, bad updates, power failure, hardware failure. Unless there is a hardware problem that only can be diagnosed at the apple center you can fix your Apple computer.
It is an excellent practice always to have a bootable macOS USB, which you can easily create using macOS operating system. But since we’re here, you probably can want to make bootable USB using Windows 10. Let’s be real, and there are more Windows computers compared to MAC. Fortunately, you can use a Windows computer to create a bootable USB flash drive.
In this article, we’ll help you with the instructions to create a bootable MacOS USB installation media from a Windows 10 computer. So that you can use that USB to install or reinstall (upgrade) Apple’s MacOS. You can create a macos Catalina/sierra bootable USB using this guide to fix your operating system.
What’s needed?
You will need a few things before you get started. The first essential thing in it is a USB drive would be awesome if you use a USB 3.0, but you can get the work done using slow USB as well. So, in contrast, you need these following things.
- One high-quality USB flash drive with 16GB of storage.
- TransMac software.
- MacOS operating system image (DMG file).
How to Create a macos Catalina bootable usb
The guide is simple and straightforward if you follow thiese step.
Download and install TransMac on your Windows PC. It’s paid software with 15-day trial, so you can use it within the time to create a bootable MacOS USB flash drive. If you like the software and to support the developer you can buy the full version.
Plug the USB drive to your Windows computer that you’ll be using to fix your MacOS. And we are going to tell you something straightforward – backup if things stored in USB Drive.
Step 1. Open the TransMac, and select Run as administrator. If you’re using the trial version, wait 15 seconds, and click Run.
Step 2. Use your USB drive right-click on it and select format disk format this will format the USB drive so that it can be used to store the Mac OS operating system. One thing you need took care of that the USB drive needs in GPT partition in order to work on a Mac computer otherwise it won’t boot.
When it prompts select a name for your USB it doesn’t matter but just do it and click ok. If the formatting completed successfully, click OK to continue.
Step 3. Again from the left sidebar right-click on the USB drive and select restore with disk image.
Step 4. Now browse to the location where the Mac OS system image file is located and click ok to load it.
Step 5. Click Yes to create the macOS USB bootable media.
It will take a few minutes to complete the process because the Mac Operating System is larger than any other operating systems like Windows and LINUX in size. Now plug the USB drive to Mac computer in order to install, install or upgrade the operating system to the latest version of Mac OS, which can be Sierra or later.
THE TOOL CAN
- Apple File System (APFS) volume read support.
- Open Mac APFS/HFS/HFS+ format disk drives, flash drives, CD/DVD/Blu-ray media, HD floppies, dmg, dmgpart, sparsebundle and sparseimage files.
- Copy files to Mac HFS+ disks and dmg images.
Format as HFS+ for Mac . - Save and restore images of disks and flash drives.
- Create, compress, expand and split dmg files.
- Built in burner functionality to burn ISO and dmg files directly to CD/DVD/Blu-Ray.
- Read Mac multisession and hybrid CDs.
- View partition layout.
How to create a GPT partition on a USB flash drive
If the USB flash drive is not working using TransMac, it could be still a partition problem. In this case, you want to redo the entire process again, but this time use the following steps to use the Diskpart command-line utility on Windows to create the appropriate GPT partition.
- Open Command Prompt as an administrator. Type cmd in run dialog or open it from the start menu.
- Type the diskpart command and press Enter. This will display that is connected to your computer.
- Enter the list disk command to view all drives connected to your computer and press Enter. This command will show all of the partitions inside of a disc.
- Type the select disk command followed the number assigned for the USB flash drive (e.g., select disk 4), and press Enter. This command will select the disc partition of your choice.
- Enter the clean command and press Enter. This erases and formats the disc.
- Type the convert GPT command and press Enter. This convert master boot record to new GPT.
- Enter the create partition primary command and press Enter to complete the process.
Quickly create a macOS bootable USB on Windows
Now make bootable USB using the TransMac software (follow instructions that are given above). Now connect the USB and power on your Mac computer while holding the option key and then select the USB Flash media to run the installation.
![Flash Software For Mac Usb Flash Software For Mac Usb](https://access.redhat.com/webassets/avalon/d/Red_Hat_Enterprise_Linux-7-Installation_Guide-en-US/images/161e53ee1dc7a9d216d7fdeab3b47859/fedora-live-usb-creator.png)
Learn using USB on MAC (Apple support page)
Learn more about making bootable USB.
Contents
You system may have been suffering from a Malware attack or you may have to reset your system since you have forgotten the admin account's password. Are you looking for the best way to burn ISO to USB for Mac? The process to burn ISO to USB Mac is not a simple task at all. Since ISO is not a native Mac file type, you would have to work around a few methods or even make use of a third party tool in order to perform this operation. This article will talk about a few ways in which you can get this done for free. Some methods are pretty easy while some may seem a bit more complicated and may not deliver the required results.
Way 1: Burn ISO to USB Mac Using Terminal
You can make use of the default command line interface on your Mac system to perform the task of burning ISO to USB. Follow the outlined steps given below to burn ISO to USB Mac.
Step 1: On your Mac system, insert a USB flash drive.
Step 2: Launch Terminal by selecting Applications > Utilities > Terminal.
Step 3: Here, enter 'diskutil list' and hit the Enter key.
Step 4: All the drives will be listed out so that it becomes easier for you to locate the correct identifier for the USB flash drive. Make a note of it and unmount the drive by keying in 'sudo unmount/dev/driveidentifier which you noted down.
Step 5: If prompted, enter the Admin password and enter the following command and hit the Enter key:
dd if=/path/toimage.iso of=/dev/driveidentifier
The above command will burn the ISO to USB to the drive specified by you. However, this method may seem complicated to some users. You can move ahead to the next solution if you find it complicated.
Way 2: Write ISO to USB Mac Using UNetbootin
You can make use of this utility for burning ISO to USB on Mac only when you have access to Linux distributions like Ubuntu. Once you have made sure that the utility is installed on your Mac, follow the steps below to burn ISO or DMG to USB.
Step 1: From the 'Distribution' section at the top of the software, choose the required Linux distribution. You can even provide the ISO file by clicking on the Diskimage radio button and then using the ellipsis icon to choose the ISO file.
Step 2: Specify the target drive and click on 'OK' and the bootable drive would be created.
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This method is possible only if you have a Linux distribution like Ubuntu.
Way 3: Cretae ISO to USB on Mac Using Virtualbox
If none of the above suggested methods work, this method would surely help you in burning ISO to USB for free. Refer the steps mentioned below to do so.
Step 1: Install the Virtualbox client on your Mac system.
Step 2: Make a guest OS on Windows and load this Windows ISO to the system.
Step 3: Leave the other settings in the default state if you are not aware of how you can change them.
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Step 4: Follow the on screen instructions carefully and then boot your system in Windows OS.
Step 5: Download the ISO burning tool once system is booted in Windows and insert the USB flash drive. Now you can burn the ISO image to USB.
Although this method is pretty effective, it takes a long time and some amount of technical expertise is required in order to get satisfactory results.
Best Way: Burn ISO to USB with 4WinKey for Mac
When you make use of a professional tool to burn ISO to USB on Mac, you can be sure of getting the desired results. PassFab 4WinKey is one such tool which is extremely efficient in performing this task. It makes this complicated process very easy so that even novice users can easily carry out the process of burning ISO to USB. Follow the step by step instructions which are given below to use this tool to burn ISO to USB Mac software.
Step 1: Download, install and launch PassFab 4WinKey on your Mac system.
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Step 2: Insert the USB flash drive into your Mac system and select the option to burn from it.
Step 3: After a while you will be notified that the process was successful.
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This is one of the easiest and quickest ways in which you can successfully burn ISO to USB in Mac.
Conclusion
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Through this article you can get to know different ways in which you can burn ISO or DMG to bootable USB. While some methods are easy, some are way too complicated. If you are looking for a tool to carry out this process for free, you can do that but most of the methods involved in such solutions would be pretty complicated for a novice user and also they end up consuming a lot of your time as well. Instead, you can choose PassFab 4WinKey tool to carry out the process of burning ISO to USB. This method is highly recommended as it is very simple and can be completed quickly without any hassles.