In previous tutorial, we wrote a post about creating macOS Catalina bootable USB on Mac, which is a simple tool and there are a couple of free tools to complete the task. You can even use the built-in tool Disk Utility and dd command to do it without installing any third-party apps. However, the situation is much different on Windows 10 because macOS install file (end with .dmg) is not supported by Windows OS. Unlike ISO image, there are few tools on Windows that can handle .dmg files. That's the most challenging part!
Burn Iso To Usb Mac Disk Utility
Download the Windows 10 ISO file. You can download the ISO file straight from Windows.
Etcher will configure and write to your USB device in three stages, each of which needs to be selected in turn: Select imagewill open a file requester from which should navigate to and select the ISO file downloaded previously. By default, the ISO file will be in your Downloadsfolder.
How to create a bootable macOS Catalina installer drive Put the macOS Catalina installer on an external USB thumb drive or hard drive and use it to install the operating system on a Mac.
So in this article, we will show you how to create macOS bootable USB on Windows 10 and targets macOS Catalina specifically, which is the latest version of Apple macOS and it is easy to download the install file. This will be a great help if there were something wrong with your Mac and a fresh install was demanded. Also if you were a Mac enthusiast and can not afford the price, then it is not a bad choice to build a hackintosh with Catalina.
Before heading to the details of each method, please make sure you have downloaded a copy of Catalina OS dmg file and a working USB drive with more than 12GB storage.
Method 1: Create macOS Catalina Bootable USB on Windows 10 via DMG Editor
There are more than one solutions to create macOS Catalina Bootable USB on Windows 10 and we will go with easy one first. DMG Editor, a popular app developed by UUByte, is a multi-functional and cross-platform image burning tool that works on Windows, Linux and macOS. It supports creating bootable USB from popular image files, including dmg, iso, zip, img. And it has full support for Linux distros and old versions of Windows OS. macOS support was not available in previous versions. But now, the latest version of DMG Editor adds better support for macOS dmg file. Let's get a try first.
Step 1.Go to UUByte official website and download Windows version of Etcher from there.
Step 2. Run the executable file and complete the installation process. After that, insert an USB drive in Windows 10.
Step 3. Open the installed UUByte DMG Editor by double-clicking on the icon shown on your home screen. Click on the 'Burn' option then. After that, add Catalina .dmg file to the software and click on 'Change' button to choose the inserted USB device.
Step 4. Finally, click on the 'Burn' button to start the dmg burning process. At this time, a progress bar is displayed on the screen and it gives you an estimated calculation for the time remaining.
Step 5. Wait about 10 minutes. It will show you a pop-up message after completing the task successfully.
The process is very quick and easy to execute. But you might have issues running Etcher app on old computers with low profile hardware. Etcher GUI is built primarily on a new Javascript framework called Electron , which consumes a lot of computing resources. So if you were going to use Etcher to create macOS Catalina bootable USB, make sure testing it on a high-profile Windows 10 PC or laptop.
Method 2: Convert .dmg to .iso and Create macOS Catalina Bootable USB
macOS Catalina install image is distributed in .dmg format and Windows 10 has no support. Hen it is almost impossible to read such files in conventional ways. So in this part, we will convert macOS Catalina dmg file into ISO and create a bootable installer by burning the ISO file to USB. This can be done with the help of third-party software.
To execute the method, you need two software. First, you need a special software to convert dmg to ISO. Second, an ISO to USB burning software to make bootable USB from ISO file. To demonstrate, we have used 7 PowerISO & UUByte ISO Editor to create macOS Catalina bootable USB from Windows 10.
Step 1: Download and install PowerISO on Windows 10.
Step 2: Insert your USB drive. Right-click on this peripheral device and choose the option to format it. After a few seconds, you will get the notification of completing the format process.
Step 3: Now, open PowerISO and navigate to Tool menu. From the pop-up list, please click the 'Convert' option.
Step 4: In a pop-up window, click the folder icon to add macOS Catalina dmg file in Source file field. And set an output file name under Destination file section. Next. choose Standard ISO Images (.ISO) from Output image file format.
Step 5: When the ISO file is created successfully. Download and install UUByte ISO Editor. Then click Burn button to open ISO burning Window. Next, add ISO file to the program and select the USB name. Wait for 7 minutes, and a bootable USB is ready!
Step 6: After getting a task completion message on screen, eject the USB and then start installing macOS Catalina from the USB drive.
The solution is simple but may need to purchase a couple of tools for executing the steps. But if you will search smartly on the internet, chances are there that you can get the required tools without paying any cost. However, if you want to bypass using any of the third-party tools, you can create the Catalina OS bootable USB by accessing macOS in a virtual machine.
Method 3: Use TransMac to Create macOS Catalina Bootable USB in Windows 10
TransMac is a single-purpose utility to open Mac disk image from a Windows PC. It's one of the quickest methods to create macOS bootable USB drive from dmg file. However, the support for Catalina is not good as Mojave and High Serrira. Plus, you have to pay for 59 USD to use the burn feature. That's why we mention this app at the end of this post.
Step 1: Download TransMac from the official site and run the .exe file to complete the installation process.
Step 2: Now plug in a USB device into the port. Now right-click on TransMac icon shown on the home screen and then choose to Run as administrator.
Step 3: After landing inside the tool's window, all disk drives will be displayed on the left side automatically. Click File -> Open Disk Image to load macOS Catalina dmf file into the program.
Step 4: Before proceeding further, you need to format your USB device to make it compatible with Mac HFS or APS partition. For doing the same, click on the 'Format Diks for Mac' option. Wait for 30 seconds to complete the process.
Step 5: Right-click on the selected USB disk. From the shown list, click on 'Restore with Disk Image'. If it shows any warning message, just click on the OK button to accept.
Step 6: After that, select the location of saved Mac OS Catalina DMG file and then click on the OK button. Now stay back and look after 20 minutes. You will get ready with a bootable Catalina USB.
TransMac is one of the easiest method to create a bootable macOS Installer USB on a Windows PC. You can use this application to burn any version of macOS operating system file to USB.
Conclusion
To conclude, we would recommend going with either the first or the second method to create bootable macOS Catalina USB. Both are super easy to follow because you don't need to install multiple tools and go through a multi-layer process to meet your requirement.
'I want to put an ISO image file onto my USB drive, but have no idea on how to do it. Could I just directly copy and paste the ISO image file to my USB? Or need I use some special ISO to USB burner tools?'
USB drives are data storage devices that have flash memory and a universal serial bus (USB) interface, which is a standard interface that is used in most computers and many other electronic devices. It is important to know some of the differences between flash drives and hard drives.
Many people may have the same question. Some people may want to burn ISO to bootable USB while some others only want to copy ISO to USB for storage. Therefore, the situation varies upon different needs. This post would show you how to burn an ISO to USB drive or/and copy ISO to USB flash drive for data storage only, rather than creating ISO to bootable USB flash drive. Hence, you may need to make clear before you decide to continue reading it.
Part 1: Burn ISO to USB Drive with ISO to USB
So, you have an ISO file that you want to burn it onto a USB flash drive or some other USB storage devices. What would you do to burn an ISO to USB or copy this ISO file to USB drive? Actually, burning ISO to USB drive is not difficult at all. You only need to make clear what you want to do – either burn ISO to USB hard drive or copy ISO to USB flash drive. Burning ISO to USB drive is quite similar to burning ISO to DVD disc, while copying ISO to USB flash drive is a little bit different. Firstly, we will show you how to burn ISO to USB drive with ISO to USB copier: You could directly copy ISO to USB drive to save ISO image files on a USB drive or transfer ISO image file from one computer to another.
Follow the below steps to learn how to directly copy ISO file to USB drive:
Plug USB flash drive into USB port. Computer would automatically detect it and install USB drive if it’s not installed. Make sure your USB flash drive gets enough space for storing ISO image file.
Locate source ISO image file, right click it and then select “Send to” option to send it to removable disk.
Or directly copy source ISO image file and then paste it to USB flash drive.
In this way, you could copy both video and data ISO image files to USB drive freely.
Part 2: Burn ISO to USB Drive with Leawo DVD Creator
If you have some video files and would like to burn video files to ISO image file for storing on USB drive, Leawo DVD Creator would be excellent for you. Leawo DVD Creator is a professional DVD burner software tool that could help you burn videos to DVD disc, folder and/or ISO image file easily. Leawo DVD Creator could help you convert and burn video files more than 180+ formats like MP4 to DVD, MKV to DVD, WMV to DVD, MOV to DVD, YouTube to DVD, etc. It enables you to create ISO image files from videos for storing on DVD disc, computer hard drive or USB drive according to your needs. It also enables you to burn photos into DVD slideshow in disc, folder and/or ISO image file. With tens of disc menu templates pre-installed, Leawo DVD Creator even allows you to select disc menu and design disc menu for output DVD content. What’s more, you could edit video files before burning to DVD content.
Download Leawo DVD Creator and install it on your computer. Follow the below steps to learn how to burn video files to ISO image files for USB drive.
Note: Leawo DVD Creator has been melted into Leawo Prof. Media as a module.
Step 1. Add source video files
Open Leawo Prof. Media and then open the “Burn” module. Add source video file by clicking “Add Video” on the main interface, or direct drag-and-drop.
Note:
After importing source videos, set the output disc type (DVD-9/DVD-5 according to your needs), bit rate and aspect ratio at the bottom.
After importing, you could also play back loaded videos, select subtitles and audio tracks, add external subtitles, etc.
Step 2: Set disc menu (optional)
You could select disc menu from the preset free disc menu options on the right of the main program interface. Also, you could click the middle of selected disc menu to preview selected disc menu template. If you don’t want to add menu for output DVD files, you could just click 'No Menu' button on the top of the right sidebar.
Note:
On the disc menu preview panel, you could click the pencil-shaped icon to edit disc menu with personal preferences. You can add background music/image/video, change title position and content, adjust text color, font, size, etc.
Step 3. Further DVD burning settings Then, click big green 'Burn' button on the main interface to enter the 'Burning Setting' panel for more DVD burning settings: Burn to, Disc Label and Save to. To burn video files to ISO image file for USB drive, choose “ISO File” option under the “Burn to”.
Note:
You could burn videos to DVD folder, DVD ISO image file, and/or DVD disc.
You could also click the wheel icon on the top-right corner and then choose 'Copy&Burn' option to set default DVD video mode from NTSC and PAL.
To directly burn video files to ISO image file for USB drive, you could insert your USB drive into the computer and then try to choose it as target in the “Save to” box. If it can’t be chosen as target, choose another directory and copy and paste the created ISO file to USB drive after burning.
Step 4. Burn video to ISO file for USB
Hit the 'Burn' button on the burning sidebar to start converting and burning videos to ISO image file for USB.
After the burning process completes, copy and paste the burned ISO image file to USB drive. As mentioned above, you could even use Leawo DVD Creator to convert and burn photos to DVD slideshow in disc, folder or ISO image file for storing on USB drive or other places.
Part 3: Burn ISO to USB Drive with Windows USB/DVD Download Tool
If you are going to burn ISO to USB bootable for Windows OS installation, Windows USB/DVD Download tool would be a wonderful choice. When you download Windows from Microsoft Store, you have two options: You can download a collection of compressed files, or you can download an ISO file. An ISO file combines all the Windows installation files into a single uncompressed file.
If you choose to download an ISO file so you can create a bootable file from a DVD or USB drive, copy the Windows ISO file onto your drive and then run the Windows USB/DVD Download Tool. Then simply install Windows onto your computer directly from your USB or DVD drive.
The below steps would show you how to burn ISO files to USB drive with Windows USB/DVD Download Tool:
Download and install Windows USB/DVD Download Tool on your computer.
Click the Windows START button, and click WINDOWS USB/DVD DOWNLOAD TOOL in the ALL PROGRAMS list to open the Windows USB/DVD Download Tool.
In the SOURCE FILE box, type the name and path of your Windows ISO file, or click BROWSE and select the file from the OPEN dialog box. Click NEXT.
Select USB DEVICE to create a copy on a USB flash drive or select DVD disk to create a copy on a DVD disk.
If you are copying the file to a USB flash drive, select your USB device in the drop-down list and click BEGIN COPYING. If you are copying the file up to a DVD, click BEGIN BURNING.
When your Windows ISO file is copied to your drive, install Windows by moving to the root folder of your DVD or USB drive, and then double-click Setup.exe.
Part 4: Burn ISO to USB Drive with UltraISO
UltraISO is most commonly used for authoring CDs and DVDs, but it also provides some tools for USB discs, and is capable of creating a bootable Windows 7 disc from a regular flash drive unit. This is a very convenient way of carrying a Windows installation disc around with you in case of emergency.
Mount Iso To Usb Mac
The below steps would show you how burn ISO file to USB drive with UltraISO in detail:
Download and install UltraISO on your computer. Get source ISO file ready.
Run UltraISO trial version with admin rights. If you are prompted with “Register Now” screen, click “Continue to Try...” button to use the trial version.
In the home screen, click “File > Open” option to browse to your Windows 7 or Windows 8 ISO file you have downloaded.
Next, in the home screen of UltraISO, click on “Bootable” menu and then click ”Write Disk Image” option to launch Write Disk Image dialog box.
In the Write Disk Image dialog, select the Disk Drive as your USB flash drive, select the write method as USB-HDD before hitting the Format button. It will then launch Format Removable Disk dialog, where you need to simply click “Start” button to begin formatting the flash drive. Please backup all data from the USB device before hitting the ”Format” button.
Once the format in done, click “Write” button and then click “Yes” for the warning prompt to start the process. When the writing is finished, you will see Burn Successful message event list.
Close UltraISO software and connect your USB to a machine to start installing Windows.
Burn Iso To Usb Mac Mojave
Part 5: Conclusion
Iso To Bootable Usb Mac
If you want to burn video files to ISO image file for storing on USB drive, choose Leawo DVD Creator or directly copy and paste video files to USB drive. If you want to create bootable system ISO image file, try Windows USB/DVD Download Tool or UltraISO.