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MichaelMiller's avatar
MichaelMiller
Bronze Contributor
Mar 03, 2026

macOS High Sierra dmg download for making bootable usb insttaller

My old Macbook Air needs a clean reinstall as the disk was erased and no os on it. Currently, macOS High Sierra is the best option but I am unable to download the dmg file from Apple website. It only...
Briarouu's avatar
Briarouu
Copper Contributor
Mar 03, 2026

If you are searching for the macOS High Sierra DMG download. Maybe it is time to consider using Uni-Beast, here's what you need to know:

Using Uni-Beast for macOS High Sierra DMG Download

When looking for the macOS High Sierra DMG download, some users turn to tools to create bootable installers or hackintosh setups. Uni-Beast is a popular tool used to create bootable macOS installers on USB drives, especially for installing macOS on non-Apple hardware.

Steps to get the macOS High Sierra DMG Download:

1. Obtain the macOS High Sierra DMG:

For High Sierra, you may need to download the installer from Apple’s support pages or trusted sources.

2. Prepare a USB Drive:

Use Disk Utility to format a USB drive as Mac OS Extended (Journaled) with at least 8GB capacity.

3. Create a Bootable Installer using Uni-Beast:

Download and run Uni-Beast from tonymacx86 or other trusted sources.

When prompted, select the macOS High Sierra DMG download as the source.

Follow the instructions in Uni-Beast to create a bootable installer on your USB drive.

4. Boot from USB and Install:

After creating the bootable installer, restart your Mac or Hackintosh, boot from the USB, and follow the installation instructions.