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how do i erase my macbook pro without saving data, and then install mountain lion?

how do i erase my macbook pro without saving data, and then install mountain lion from a CD?

im currently running lion

Mac OS X (10.7.2)

Posted on Aug 21, 2012 2:28 AM

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16 replies

Aug 23, 2013 6:55 PM in response to Nster101

When you boot your computer, hold down the option key. Wait until you see a DVD icon and select it to boot from. If this is a legitimate ML installation disk, the option to install should be fairly aparent.


Make sure your computer meets the system requirements for ML.


If you haven't erased your disk yet and you could boot from your DVD successfully, There should be a menu on the top of the screen with the disk utility within. Select that.


From the left window, select your Macintosh HD disk and click on the Erase tab to the right.


Select the format – Mac OS Extended (journaled)

Click the erase button. Wait.

Now find the install mountain lion option.


If it doesn't function properly, then you have a different problem.

how do i erase my macbook pro without saving data, and then install mountain lion?

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