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Q: My MacBook Air is currently loaded with OSX Lion. How do I load El Capitan? I do not have an internet connection that will stay co ... more
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Feb 9, 2016 2:44 PMby sberman,This explains how to upgrade:
Upgrade to OS X El Capitan - Apple Support
The download required is huge (about 6 gigabytes, as I recall). So the length of time required to download the software depends on the speed of your internet connection.
