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Sony123

macrumors newbie
Original poster
Apr 14, 2012
24
0
Hello, i just bought used MBA 2012. It go ok , but I want reinstal OS X. I want clear instalation.
I push cmd + R and select reinstal Mountain Lion. I accepted terms.. And its start downloading. It write about 14 hours.
My internet speed downloading is about 5MB/s. Why it write 14 hours? What it downloading?
Its my firts OS X devices.

Sorry for my English :)

Thanks :)
 

stchman

macrumors 6502a
Jul 16, 2012
671
2
St. Louis, MO
Hold down the Option key during boot and select recovery. There is an option to run Disk Utility to delete all your partitions. You can then select the blank drive and install OS X.
 
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