macOS 10.12 Sierra Download: DMG & ISO Full Installer

This article is written in Indian English and intended for readers in India.

macOS Sierra was released in September 2016 and marked a major update to Apple's Mac operating system. With this version, Apple transitioned from the OS X naming convention to macOS, bringing the Mac platform in line with iOS, watchOS, and tvOS.

The release introduced several important features for Mac users, including Siri integration, the ability to copy content on one Apple device and paste it on another, and the Optimized Storage feature available through iCloud Drive.

Although macOS Sierra is now an older operating system, there are still scenarios in which macOS 10.12 may be required. These may include compatibility with legacy software, hardware limitations, or individual user preference. In such cases, a macOS Sierra DMG file may be needed for a Mac, or a macOS Sierra ISO file for use in a virtual machine.

Before installing the operating system, you must first download the complete macOS 10.12 Sierra installer, either in DMG or ISO format. It is also important to understand the installation procedure before proceeding.

If you are looking for installers for other macOS versions, you can refer to the available collection of the latest macOS, OS X, and Mac OS X installers.

If you intend to install macOS Sierra on a Windows computer, you should download the macOS installer while using Windows.

Download macOS Sierra 10.12 DMG full installer [Direct link]

There are two primary methods to download the macOS Sierra DMG file: directly from Apple's servers or through a trusted third-party archive.

① Download macOS Sierra DMG from Apple's server

Unlike newer macOS versions that are distributed through the Mac App Store, macOS Sierra is only provided by Apple as a disk image hosted on its servers. As a result, the download is restricted to Mac models that are compatible with macOS 10.12.

To access the installer, you must use a Mac that supports macOS Sierra. It is advisable to open the download link using Safari, as other browsers may not initiate the download properly.

② Download macOS Sierra DMG from archive.org

If you are using a Windows PC or a Mac that does not support macOS Sierra, you can download macOS 10.12 from archive.org. The platform offers the macOS Sierra DMG file for Windows 7, 8, 10, and 11, as well as for macOS systems.

You may share these download links with others who require macOS 10.12

Download macOS Sierra 10.12 ISO Full Installer [Direct Link]

To install macOS Sierra on a virtual machine running on Windows or unsupported Mac hardware, the ISO version of the installer is required. Use the provided link to download the macOS 10.12 ISO file for use with VirtualBox or VMware.

Download macOS Sierra 10.12 ISO for VirtualBox/VMware

A macOS Sierra VMDK file is also available for users who prefer to install the system using a virtual machine.

How to Create a Bootable USB Installer with macOS Sierra DMG?

A bootable USB installer is commonly required when performing a clean installation, upgrading or downgrading macOS, or setting up a virtual machine environment.

Use iBoysoft DiskGeeker to Create Boot Media

Instead of creating the bootable installer manually, you can use iBoysoft DiskGeeker to simplify the process of creating macOS Sierra boot media.

Step 1: Download and install iBoysoft DiskGeeker.

Step 2: Select Create boot disk from the left-hand panel.

Step 3: Select your external storage device and click Select > Continue.

Step 4: Choose macOS 10.12 Sierra and click Create boot disk.

Once the installer has been created, continue based on whether you are using a compatible Mac or a Windows PC.

Creating a macOS Sierra bootable installer is not supported on an incompatible Mac, although this limitation does not apply to macOS High Sierra or later versions

If you are using a Windows PC, follow the guide for creating a macOS bootable USB from Windows.

Creating the installer manually on supported systems

If you are working with a Hackintosh or a Mac that supports macOS High Sierra or later, the latest macOS Sierra, or OS X El Capitan, follow the steps outlined below.

Step 1: Add the macOS Sierra installer to the Applications folder

Open InstallOS.dmg, then double-click InstallOS.pkg and follow the on-screen instructions. The installer will verify system compatibility before proceeding.

If the Mac is not compatible, the process will stop with an error stating that macOS 10.12.6 cannot be installed on the computer.

Step 2: Format the USB storage device

Prepare an external drive with a minimum of 8 GB of storage space. Ensure that all important data is backed up, as formatting will erase the drive.

Step 3: Create the macOS Sierra bootable installer using Terminal

After formatting the drive, open Terminal and run one of the following commands:

sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ Sierra.apporsudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

Enter your administrator password when prompted, confirm the action if required, and wait for the process to complete.

Step 4: Boot from the macOS Sierra USB installer

Insert the USB drive into the Mac you want to start. Turn on the Mac and immediately press and hold the Option key until the startup volumes appear. Select the macOS Sierra installer and continue.

When the macOS Utilities window is displayed, choose Install macOS Sierra to begin the installation.

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Not enough space to download macOS Sierra 10.12 installer?

Downloading the macOS Sierra installer requires sufficient free storage space. To avoid download interruptions or installation errors, it is recommended to remove unnecessary files before starting.

Disk cleaning tools such as iBoysoft DiskGeeker can help analyse your internal drive and display files or folders in descending order by size. This makes it easier to identify large or unused items and remove them efficiently.

You can also use the Clean Junk feature to locate and remove junk files, including application caches, log files, preference files, email data, and items stored in the Trash.

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FAQs about macOS 10.12 download