MacOS – use the new Lion OS X license on two machines, or do I have to buy one for each

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I have 2 macbooks (the unibody and the one before that). Do I need to buy two licenses or can I just use one license for both machines?

Best Answer

Like everything else you purchase in the Mac App Store, you can install Lion on all of your Macs after buying it once. There is no activation process or DRM.

Here's the relevant excerpt from Lion's license agreement (emphasis mine):

If you obtained a license for the Apple Software from the Mac App Store, then subject to the terms and conditions of this License and as permitted by the Mac App Store Usage Rules set forth in the App Store Terms and Conditions (http://www.apple.com/legal/itunes/ww/) ("Usage Rules"), you are granted a limited, non-transferable, non-exclusive license:

(i) 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 Mac OS X Snow Leopard or Mac OS X Snow Leopard Server ("Mac Computer") that you own or control;

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