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Q: hello, i have mac book air Software Mac OS X Lion 10.7.5 (11G63) from 2011, i want to install the new os x mavericks 10.9.5. ... hello, i have mac book air Software Mac OS X Lion 10.7.5 (11G63) from 2011, i want to install the new os x mavericks 10.9.5. does it slowly my mac? thanks more
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Sep 18, 2014 10:01 AM in response to daniel2811by dominic23,OS X Mavericks
System Requirements
http://support.apple.com/kb/HT5842
MacBook Air runs OK with 4GB RAM, but with 8GB RAM installed, Mavericks runs well.