How to Download macOS High Sierra DMG Full Installer?

macOS High Sierra DMG download

The macOS High Sierra DMG file is essential for installing macOS High Sierra on a computer. Whether you're looking to create a macOS High Sierra bootable USB installer or directly install macOS High Sierra on your Mac, you'll need to download the full installer DMG first.

In this article, we'll introduce different ways to download the latest macOS High Sierra 10.13.6 full installer DMG file with or without the App Store.

How to download macOS High Sierra DMG?

Here are 2 ways to download the macOS High Sierra DMG file. You can choose the one that's convenient for you.

① Apple Store

You can download the macOS High Sierra full installer from the App Store if the Mac you're using is compatible with it. Otherwise, you'll receive the error message "Update not found. The requested version of macOS is not available. Please check if your Mac is compatible with this software."

Download macOS High Sierra full installer from the App Store

Here's the list of Mac models compatible with macOS High Sierra:

MacBook (Late 2009 or newer)
MacBook Pro (Mid 2010 or newer)
MacBook Air (Late 2010 or newer)
iMac (Late 2009 or newer)
Mac mini (Mid 2010 or newer)
Mac Pro (Mid 2010 or newer)
iMac Pro (2017)

② Direct download link

If you have a Windows PC, an incompatible Mac, or are currently running a macOS version newer than High Sierra, you can't download the installer from the App Store. Instead, you need to directly download the macOS High Sierra full installer DMG file through the link below.

macOS High Sierra 10.13.6 full installer DMG download in Google Drive (credit goes to techrechard)

Share this post to help others get the macOS High Sierra DMG download without App Store.

How to install High Sierra from DMG file?

Once you've downloaded the macOS High Sierra DMG file, you can follow the steps below to install it on your Mac:

Double-click the DMG file to mount it as a disk.
Open the macOS High Sierra installer and click Continue.
Follow the on-screen instructions to finish the installation.

How can I reinstall macOS High Sierra?

① Install from macOS Recovery

The easiest way to reinstall macOS High Sierra is by booting into macOS Recovery. Turn off your Mac, turn it on, and immediately press and hold one of the following keys, then release the keys when you see the Apple logo or spinning globe. When the macOS Utilities window loads up, select "Reinstall macOS High Sierra."

If the last macOS installed on your Mac is macOS High Sierra, use Command + R.
If macOS High Sierra is the latest macOS compatible with your Mac: use Option + Command + R.
If macOS High Sierra is the macOS shipped with your Mac, use Shift + Option + Command + R.

② Install from a bootable USB installer

Alternatively, you can create a bootable installer and boot from it to install macOS High Sierra. Note that you need to create the bootable installer with the macOS High Sierra DMG file on a compatible Mac. Follow the steps below:

Double-click the dmg file to mount it.
Double-click the .pkg file inside to install the macOS High Sierra installer in your Applications folder.
Prepare a USB storage device with at least 14 GB of available storage. (Back it up if it contains essential data.)
Open Disk Utility from the Applications > Utilities folder.
Click View > Show All Devices.
Select the top level of your USB drive and click Erase.
Give the drive a name.
Choose Mac OS Extended (Journaled) as the format.
Select GUID Partition Map as the scheme.
Click Erase.
After the drive is formatted, launch the Terminal app from the Applications folder.
Replace MyVolume with the name of your USB volume and run the command below:
On a Mac running macOS High Sierra or later:sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --nointeractionOn a Mac running macOS Sierra or earlier:sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ High\ Sierra.app --nointeraction
Type your administrator password and hit Enter.
Once Terminal is done, quit it.
Ensure your Mac is connected to the internet.
Reboot your Mac, then immediately press and hold the Option key.
Release it when you see a dark screen showing your bootable volumes.
Select the volume of the bootable installer and click the onscreen arrow.
Click "Install macOS High Sierra" and follow the instructions.

Note: T2-based Macs must set Startup Security Utility to allow booting from external or removable media before booting from the USB installer.