Download Macos 1012 Sierra [better] Full Jun 2026

If you cannot access the App Store or need a bootable ISO file for virtualization (VMware/VirtualBox), community archives are the next best option.

Copy and paste the following command into Terminal, then press Enter:

Although Sierra is no longer featured, Apple still provides the official installer via the Mac App Store. This is the safest method to get a .

Convert the downloaded .app to ISO using the hdiutil command: download macos 1012 sierra full

For most users, the only safe and legal way to download macOS Sierra is directly from Apple.

This archive provides pre-prepared ISO images, ideal for creating bootable USBs or installing in VMs. System Requirements for macOS Sierra Before downloading, ensure your Mac supports macOS 10.12: MacBook Pro (Mid 2010 or later) MacBook Air (Late 2010 or later) iMac (Late 2009 or later) Mac mini (Mid 2010 or later) Mac Pro (Mid 2010 or later) Memory: At least 2GB of RAM (4GB recommended). Storage: 8.8GB of free space. How to Create a Bootable USB Installer (Full)

hdiutil create -o /tmp/Sierra -size 8g -volname Sierra -layout SPUD -fs HFS+J hdiutil attach /tmp/Sierra.dmg -noverify -mountpoint /Volmes/install_build sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/install_build hdiutil convert /tmp/Sierra.dmg -format UDTO -o ~/Desktop/Sierra.iso If you cannot access the App Store or

Visit the official Apple support page for older macOS versions or use this direct link to the macOS Sierra App Store page. Click the button. The Software Update preference pane or App Store will open.

Select from the bootable disk options using the arrow keys and press Enter .

Whether you want to perform a or an in-place upgrade Convert the downloaded

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

The App Store application will launch automatically on your Mac. Click the or Download button.

From the macOS Utilities window, select and click Continue .

After download, right-click the installer app and select “Get Info.” The file size should be approximately 4.8 GB (exactly 4,892,135,424 bytes for 10.12.6).

Because Apple has moved toward the App Store and "Software Update" pane for newer releases, finding the full installer for Sierra requires navigating to Apple’s Support Pages