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Q: how i can up grade my  mac os x lion 10.7.5

i want to know how i can upgrade from mac os x lion 10.7.5 to the new sistem like yosemite

MacBook, Mac OS X (10.7.5), mac os x lion 10.7.5

Posted on Apr 19, 2015 7:16 PM

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Q: how i can up grade my  mac os x lion 10.7.5

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