Here’s how to convert a DMG file into an ISO file that can be mounted on a Windows PC. The DMG image format is by far the most popular file container format used to distribute software on Mac OS X. Here’s how to convert a DMG file into an ISO file that can be mounted on a Windows PC. How to Convert DMG Files to ISO Files on Windows.
Whether you want to do an OS installation, system repair or some other advanced task, ISO file comes in handy. Typically, they contain all the required files for an installation or the tools required for repairing a system. However, ISO files need to be converted into bootable media so that you can use them on another machine. Although the task is relatively simple, you must understand that it is not the same as copying a file from one location to another. If you do that, then the boot information required to make the ISO file bootable will not be present.
For this and other reasons, in order to make a bootable DVD or CD from an ISO file, you will require a specialised utility. In this article, we have showcased three different tools by which you can use an ISO file to create a bootable DVD. As you will see, not all of them are equally easy to use, so depending on your level of computer proficiency, choose the method that you are most comfortable with.
Free ISO Burner is a very popular utility to create bootable media from ISO files. You must be warned that since this is an open source application, you will only get support from other users in the softwares forum. However, since this application is fairly simple to use, we have described the process for you below:
Step 1 : Download the file from this direct download link and install it on your Windows PC. Double-click to open the application.
Step 2: If you notice, there is no installation required, and the program will run as soon as you double-click the downloaded file. On the software interface, you will have an option to select the ISO file that you want to burn onto the DVD or CD. Select that file, and insert a writable DVD or CD at this point.
Step 3: On the same window, you will be able to select the appropriate drive, which is your optical drive containing the DVD/CD that you inserted.
Step 4: It is recommended to leave all the other parameters as default if you are a novice. Now click on the 'Burn' button and your bootable media will be burned to the chosen DVD in a few moments.
Please note that this particular application will not work on 64-bit Windows computers. Also, you may face a high error rate when you burn it to DVD/CD. The utility works for most Windows users, but you if you have any trouble using it or face any of the errors mentioned, then you can try next utility we recommend.
UUByte ISO Editor is one of the most powerful and fastest ISO burning utilities around. The error rate is extremely low, and the steps to use this software are simple enough for any novice user trying this for the first time. ISO Editor supports both 32-bit and 64-bit Windows machines, and the program provides support for both UEFI systems as well as the legacy BIOS boot. You can also create bootable USB with this application, and it supports multiple file systems such as FAT, FAT32 and NTFS.
Apart from being a very lightweight application, one of the best features of ISO Editor is the integrity of the ISO files being maintained after they are burned as bootable media. That means if you are creating a bootable DVD, the chances are very low that there will be an error and that you will have to repeat the process all over again. If you have done this before, you will know that this is one of the biggest issues when creating bootable DVDs. Most users have found out the hard way that using the wrong tools can waste a lot of DVDs, not to mention the time spent on.
Download this burning program from the direct download link and install the application on your PC. Please ensure that you only download from the UUByte official website. This will guarantee that you only get the latest version with all the appropriate security updates applied.
Now insert a DVD/CD into the optical drive and launch UUByte ISO Editor. The installation setup is extremely simple, and if you have any trouble then the on-screen instructions will help you get this set up correctly. Click the 'Burn' tab to open ISO burning feature.
As you will see on the software interface, all the actions can be completed on a single screen. First of all, select the ISO file to be burned. Now select the destination drive, which will be the optical drive into which you have just inserted your DVD or CD. You can leave all other default settings as they are, and simply press the 'Burn' button. In just a few moments your bootable DVD will be ready and completely error free.
I have to say UUByte ISO Editor is a quite smart and efficient program to make bootable DVD from Windows installation ISO. It runs much faster than other ISO burning software and support multiple versions of Windows OS. Why not downloading a copy and giving it a try?
ImgBurn is another powerful software to create bootable DVDs from a source ISO file. Many users find this to be a lot more reliable than free ISO burner. The burn error rate is also said to be considerably lower than the previous application.
Step 1: The easiest way to burn an ISO file to a disk is to go into File Explorer, find the ISO file and right-click it to select the ImgBurn option. Of course, this means you will need to install ImgBurn on your PC beforehand. The next step shows you how to do this.
Step 2: Download ImgBurn from this location and install it on your PC. Once it is installed, you can use Step 1 to initiate the burning, or follow the steps below.
Step 3: Launch ImgBurn and you will see a window where you need to make several selections. Since you aren't burning using the right-click option on the ISO file, the selections won't be auto-populated. You will need to open and select the ISO file to be burned.
Step 4 : Now insert the DVD into the optical drive, and select that destination on the software interface. There is also an option to verify the bootable media after the burning is complete, and for this you will need to check the box next to where it says 'Verify'. Finally, click on the 'Burn' icon and your bootable DVD will be ready in a few minutes.

Even though this particular application is known to be a little more reliable than Free ISO Burner, you may notice the last stable release was made several years ago. That means there have been no security updates during this entire time. If you are a security-conscious person, then this may be a problem for you. In such a case, you can use the third method described below.
The choice of utility to make a bootable DVD is entirely up to you, of course. However, you can not ignore the fact that older software is more prone to errors and security vulnerabilities. For that reason, it is always recommended that you use proprietary software that is updated on an ongoing basis and has the right kind of customer support that new users will require if they face issues.
To create a bootable USB drive from a DMG file on Windows, you will need to have the right utility. That's because DMG is not native on Windows. It is the Mac equivalent of an ISO file that has been in use since Apple transitioned from the IMG format with Mac OS X. A DMG file, like ISO, can be used to install macOS operating system or Mac apps. If the Mac computer was broken or crashed and couln't get into the system, but you only have access to a Windows PC, there's still a way to make a bootable macOS install USB on Windows.
This article looks at three applications that you can use to create a bootable USB drive from a DMG file in Windows. All of them have their advantages and disadvantages, which we have highlighted. You can make the best choice for you based on the information provided below. They are in no particular order of preference.

This is a fairly robust application for creating bootable USB on Windows from a DMG file. However, there's a preparatory step to be executed before you can create the bootable USB drive. The typical disk partition used is MBR, but you will need to do a partition with GPT for this to work. You can do so by executing the diskpart command in Windows CMD. Alternatively, you can do it from within TransMac, as shown in the instructions shown below the next paragraph.
Once this is done, you can download TransMac and use the two-week free trial period to get the job done free of cost. You can always upgrade if you like the utility and want to keep using it after the trial period has ended. Once you download and install the application, insert your formatted USB drive and follow the instructions below:
Step 1: If you haven't formatted the USB, right-click on your USB drive in the left panel and select Format Disk for Mac from the contextual menu.
Step 2: Right-click again on the drive in the left panel and this time select Restore with Disk Image.
Step 3 : Select the DMG file and click on Open. Once the process is complete, you can eject the drive and use it on a Mac. To boot from this media, hold down the Option key and fire up your Mac.
Since ISO is a better format for Windows, you can also convert the DMG to the ISO format and then use the ISO disk image to create the bootable USB. Please note that you can't boot your Mac from bootable USB made from an ISO file, which means you'll have to convert it back to DMG prior to that. Still, it's an effective way to create bootable media for a Mac computer. Here's how it works:
Step 1: Once you have the macOS install DMG file on a Windows PC, click on Windows + R to open the run dialog box, and type in CMD, then hit Enter. When the Command Prompt opens up, use the following command to convert the file to ISO:
hdiutil convert /path/sourceimagefile.dmg -format UDTO -o /path/targetmage.iso
Step 2: Download and install UUByte ISO Editor on your PC, insert the USB drive and launch the application.
Step 3: Click Burn button on the main screen and point to the converted ISO file. The drive will be automatically detected and click on Burn icon to burn the ISO to the USB drive.
Once the ISO is burned to the file, you can insert it into a Mac and convert it back into the DMG format. Since you're converting the file twice, there's a chance that the file could get corrupted in the process. If that happens repeatedly, then try this next method.
This Windows utility allows you do create bootable USB from DMG on a PC. You can also edit the DMG or extract the contents, and there's also an option to copy it to a disk. For this particular exercise, we'll show you how to use PowerISO to create a bootable USB drive on Windows without having to convert the disk image into another format like ISO.
Step 1: Download and install the application on your PC.
Step 2: Insert your USB drive and launch PowerISO.
Step 3: In the Tools menu, select 'Create Bootable USB Drive… '. You will need to give admin privileges to the software. Alternatively, you can run the program as admin when you launch it.
Step 4: Select the USB drive in the section called Destination USB Drive.
Step 5: Leave all other default as they are and click on 'Start' to burn DMG to the USB drive.
You should be able to see the progress, and a new popup will appear when the bootable media is ready. You can now eject the media and use it to run the DMG on a Mac computer.
All of these methods are workable, so select the right one for you based on your level of knowledge and your preference.