how to create a bootable installer for mac os high sierra

Create A Bootable Er High Sierra Mac OS X In DMG

But how do you create such a disk if all youre left with is a Windows 10 computer Fortunately, theres a great tool that you can use for free to create bootable macOS media on a USB drive in a Windows 10 environment.

This article shows you how to download a macOS DMG file, format a USB drive using a GUID Partition Table, burn the DMG to the drive and boot your Mac from the USB.

All the steps except the last one are done on a Windows 10 machine.

You can get a copy of the latest macOS version from Apple download portal or App Store here.

Create A Bootable Er High Sierra Mac OS X In DMG

There are also several other direct download sites that offer various versions of Mac OS X in DMG format rather than the standard APP format that runs on Mac.

Since youre working in a Windows environment, you need the DMG rather than the APP file.

However, FAT32 can be only used for installing OS with legacy BISO, which doesnt work for macOS.

So the next step is to format your USB drive in the GPT partition style in order to burn installation files to the desired USB drive.

In elevated Command Prompt (CtrlShiftEnter), input the following series of commands followed by Enter after each line: Diskpart List disk Select Disk X (X stands for the USB drive name that appears after the previous command) Clean Convert GPT Create partition primary.

Although this is a premium software, you can use the initial free trial period to create a bootable macOS USB drive on Windows 10.

After installing the application, follow the sequence of steps shown below.

You will see a progress bar and wait around 10 minutes to get it done.

After that, you can use that USB drive for installing macOS.

To boot from the disk, you need to hold down the option key when you hear the boot chime.

This will take you to the Startup Disk Manager, where you should be able to see the USB drive.

Once you select it, the computer will boot from the disk and the macOS installation will begin.

That being said, you need to be careful when downloading the DMG file and formatting your USB drive.

If you dont do these two steps correctly, the output drive from the UUByte DMG Editor software wont be bootable, which means you cant install macOS using it, and you may need to do the whole thing over again.

How To Create A Bootable Installer For Mac Os High Sierra