Install / Upgrade to Mountain Lion on Multiple Macs with a Single Purchase

Now you can avoid from buying Mac updates and other personal authorized Macs by just one single purchase of OS X Mountain Lion from the link given below.

Buy OS X Mountain Lion once for $19.99 (Download Here]

Apple has officially allowed this and the proof is in Apple’s generous Mac App Store licensing agreement. As most people find it as a hectic job to read it completely, we are providing you with the main points as described in the license agreement:

“To download, install, use, and run for personal, non-commercial use, one (1) copy of the Apple Software directly on each Apple-branded computer running OS X Lion or OS X Snow Leopard (“Mac computer”) that you own or control.”

It depicts that you can easily re-download Mountain Lion or another Mac as long as Mac shares the same apple ID. Some methods for upgrading Macs are provided below:

Method 1) Downloading Mountain Lion on Other Macs

Easiest one is to just download the installer

  • Login with your Apple ID that was bought by you.
  • Click on the “Purchases” icon and locate “OS X Mountain Lion”, then click the “Install” button
  • Run the installer

Method 2) Transfer the Mountain Lion Installer Over AirDrop

From the Mac you are copying the Installer from:

open a new Finder window and navigate to /Applications/ and locate the file “Install OS X Mountain” then open another Finder window and select “AirDrop” from the sidebar

From the Mac(s) you are transferring Mountain Lion installer to:

open a new Finder window and choose “AirDrop” from the sidebar

Drag and drop “Install OS X Mountain” to the destination Mac(s) in AirDrop, and accept the file transfer on the destination Macs

When finished copying, upgrade to OS X 10.8 as usual

Method 3) Copying OS X Mountain Lion Installer to Other Macs via LAN

In order to do this, you’ll need to have downloaded the Mountain Lion installer and not installed it yet, or else you’d have to re-download Mountain Lion. This solution is best for multi-Mac networks and for those looking to upgrade to Snow Leopard

  • On all Macs you wish to copy the Installer to, enable File Sharing by going to?
  • Apple menu > System Preferences > Sharing > check “File Sharing”
  • From the Finder of the Mac with Mountain Lion installer, go to /Applications/ to find the installer “Install OS X Mountain”
  • Open a new Finder window and hit Command+K to bring up “Connect to Server”, choose “Browse” and connect to the shared Mac
  • Navigate to the shared Macs /Applications/ folder and copy “Install OS X Mountain” to it

Repeat as necessary for other personal Macs

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