Mac Operating Systems use DMG file as the disk image format. If you see a DMG file, which means it was specifically built for Mac Operating Systems. If you need to open and see the content or use that as an installation medium on Windows OS, then this guide will be useful to convert the DMG to ISO for free on Windows 10 computer. Windows OS and most of the software do not support DMG files directly. Once it is converted to ISO file format, then it can be burned to CD or DVD in Windows OS. Even you can mount the ISO file in the virtual environment and use it.
Here, I will be showing how to convert the Mac DMG file to ISO on my Windows 10 computer. This method is applicable for older Windows versions such as 8.1 and Windows 7. I will use a small program called ‘dmg2img’ for this conversion. Dmg2iso is a free command-line tool that does the job quickly and correctly. Power ISO is another solid tool but it is a paid application.
How to Convert Mac DMG to ISO in Windows? Follow the steps
1) Download dmg2img from the official site here. It has a 32-bit version only. You can still use it on your 64bit Windows 10.
2) Installation not required, just run the below command after extraction. You can use any unzipping tool to extract the file. You must run the command from the same extracted folder which is having ‘dmg2img.exe’ file. Otherwise, you need to set up the path in Windows variables.
dmg2img < Source file.dmg> <destination file.iso>
3) The original conversion with correct file names starts as below.
In the end, you will get a successfully converted ISO file from DMG file in Windows. This ISO can be used by any mounting software or attached to VMware or VirtualBox as CD ROM drive. Also, it can be burned to physical CD or DVD. It becomes portable and accessible on most of the Windows and Linux Operating Systems.
Alternate to dmg2img for DGM File to ISO – Power ISO
Power ISO is a paid software which mainly built to CD/DVD image files conversion. It is easy to use as it has the graphical interface. If you regularly convert these type of files for production or testing environment, then you can consider Power ISO as the best option.
You can visit their home page to find more information and download.
There are some more other GUI tools (with the graphical interface) available, but they are not free. I find that the dmg2img free tool does the job very well and the converted ISO file worked in most of the software and Operating Systems.