Menu
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.
Jul 20, 2017 DMG files are mounted by your system, like a sort of virtual hard drive. When you’re done installing the application, it’s a good idea to unmount the DMG in Finder when you’re done installing: just click the “Eject” arrow. Then you can feel free to delete the original DMG file: you don’t need it anymore. Mar 29, 2019 Press your Mac's ⏏ Eject button. This key is in the top-right corner of your Mac's keyboard. If the CD tray/slot is working correctly, the disk should slide right out. The disk may take a few seconds to eject if you were using it immediately before pressing the Eject button. Go to the Finder and click on a search box in the upper right corner. Then, enter ‘pkg’ or ‘dmg’, depending on what you`re looking for. In the appearing menu, select the following sections: Kinds - Disk Image. Right after it will show you all KPG or DMG files stored on your hard drive. Remove them all together. Oct 28, 2007 I am having problems eject dmg mounted install files. Right now have 6 of them that won't go away.when you try to eject from finder.finder closes instead. After a clean install, I had this same problem where I couldn't eject any disk images on my desktop. I restarted and haven't had the problem since. Try logging out and restarting. Auto-delete a DMG file when ejecting a disk image Authored by: Sven G on Aug 17, '12 04:08:28AM Yes, of course it's a very good idea to keep the.dmg's,.zip's, etc. That you might need in the future; but the internet-enabled disk images were cool, anyway (probably, they don't work anymore for security reasons; well, a.zip is almost.
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.
TransMac - Make DMG File Bootable USB on Windows
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.
Convert DMG to ISO and Create macOS Boot USB from Windows
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
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.
PowerISO: Make Bootable Mac Install USB on Windows 10/8/7
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.
![Mac Mac](/uploads/1/2/6/3/126306186/631312801.png)
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.
Conclusion:
All of these methods are workable, so select the right one for you based on your level of knowledge and your preference.
DMG Files on Mac OS
In Mac OS file extension DMG is often referred as Apple Disk Image and is used to refer to files which store disk images. DMG files could be mounted as a volume in Finder. Currently DMG files on Mac OS are used to distribute software packages.
When software package in DMG file is opened it instructs Mac OS Finder to change its window in a way it is easy for user to copy application to the right folder. Finder window shows source application folder and the destination folder. All that user has to do is to drag and drop application folder to the destination folder. This will install an app.
Below are steps you need to take to install an application from DMG file:
![Eject Eject](/uploads/1/2/6/3/126306186/295716276.png)
- Double click the DMG file. This will make its contents available in Finder.
- Drag the application from the DMG window into Applications. This will initiate installation process.
- Wait until the copy process is finished
- Eject the DMG file (click Eject button on the Finder Sidebar)
- Delete the DMG file
How To Eject Dvd On Macbook
Similar file extensions
How To Eject Dmg On Mac Windows 10
- IMG file - Disk Image Format for Windows
- ISO file - Image File Format