OS X Lion: How to install Lion on multiple computers

Summary

You can easily install OS X Lion on every Mac that's authorized for your personal use. You can purchase Lion once, then download it multiple times.

Products Affected

OS X Lion

To install OS X Lion on another Mac, go to the Mac App Store, sign in to your account, and re-download Lion by selecting it in the Purchases list. Follow these steps:
  1. Download Lion from the Mac App Store on one of your authorized computers. The download is approximately 4 GB in size.
  2. Install Lion.
  3. Log into another computer that you wish to install Lion on. 
  4. Open the Mac App Store. Enter your Apple ID and password that was used to download Lion on the first computer.
  5. Go to Purchased list, then select OS X Lion.
  6. Download OS X Lion.
  7. Run the Installer.
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