Download macOS Installer.dmg file Apple yesterday released macOS Sierra for public. The update weighs ~5 GB. I have two Macs with me: one is my personal, the other my office has given. Instead of downloading the installer twice (10 GB), It would be great to download the copy and once use it to upgrade multiple devices (iMacs/Mac minis).

I have tried to find the dmg file but I haven't been able to find it, instead I was redirected to the App Store. Any help would be appreciated.
Download on the first machine.  
When complete, the Installer will auto-launch.  
Quit it.  


The Installer is in /Applications/ and has the name Install macOS Sierra. [BTW it's not a .dmg, but an .app file]

Copy it to a safe place; after install it will be auto-deleted from Applications.

The copy can then be used on any other machine. Drop into the Applications folder on that machine &amp; launch.