I have: a Mac OS.DMG file Windows 7 OS Is it possible to make installation disk of Mac OS in Windows 7. I would like to install Mac OS Mountain Lion in my Intel Core i3 processor.Is there any easy and straight forward way to do this on windows? I got a new SSD and I am prepared to install it but first I need to create a new bootable USB with Mountain Lion on it to begin the process.

I need to install Mountain Lion on my Mac once again as the SSD is garbage.

You can now quit Terminal and eject the volume.If you bought a new machine from Apple you have OS X 10.8 already installed – but no back up disk! and since you haven’t bought the OSX Lion 10.8 App from the App store you can’t re-download it – so thats why you have the recovery drive as a partition in your main hard drive, to boot from it you need to restart the machine and when it starts to boot hold down “command” + “r” keys.

When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Catalina.

Terminal shows the progress as the bootable installer is created.

When prompted, type Y to confirm that you want to erase the volume, then press Return.

Terminal doesn't show any characters as you type your password.

When prompted, type your administrator password and press Return again.

If it has a different name, replace MyVolume in these commands with the name of your volume. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using.

Type or paste one of the following commands in Terminal.

Open Terminal, which is in the Utilities folder of your Applications folder.

Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.

Connect the USB flash drive or other volume that you're using for the bootable installer.

Use the 'createinstallmedia' command in Terminal You will create the bootable installer from this app, not from the disk image or. It installs an app named Install OS X El Capitan into your Applications folder.

On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg.

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