Mac OS X Lion v10.7.4: How to erase and install

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Mac OS X Lion v10.7.4: How to erase and install

I have a software problem with the recent upgrade Mac OS X Lion 10.7.4

I have backed up everything and want to erase everything on the hard drive and reinstall … however when I try to start up from the Mac OS X Install DVD by restarting with it in the optical drive, whilst holding the "C" key as the computer starts up … it just starts up as normal from the HD and thus cannot erase it?!!

Can you offer any words of wisdom at all please?

MacBook Pro, iOS 5.0.1

Posted on May 22, 2012 8:56 AM

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Answer 1

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frederic1943

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May 22, 2012 9:02 AM in response to 1point6

10.7 doesn't have a DVD it has a recovery partition. You start up holding the R key to access the recovery partition.

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Answer 2

1point6 Author

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May 22, 2012 9:05 AM in response to frederic1943

Thank you very much, i will give it a go now ... is that caps lock r ... R ?

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Answer 3

May 22, 2012 9:32 AM in response to 1point6

Just a regular r.

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Answer 4

1point6 Author

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May 22, 2012 9:37 AM in response to frederic1943

Fantastic thank you so much!

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Answer 5

1point6 Author

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May 23, 2012 9:22 AM in response to frederic1943

Hi frederic1943,

Thank you for your advice, it all worked great however ... i thought that a complete erase and reinstall would remove the problem causing my colour wheel to turn on excessivley (especially i have noticed in OUTLOOK ever half sentence or so!!)

Do you have any idea why this may be happening and what I can do to stop it please?

MacBook Pro Early 2011; Processor 2.3 GHz Intel Core i5; Software Mac OS X Lion 10.7.4 (11E53); Memory 4 GB 1333 MHz DDR3

Thanks again

Fliss

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Answer 6

May 23, 2012 11:16 AM in response to 1point6

While we all have MacBooks in this forum most of us don’t run Lion. There's a Lion Support Community where everybody has Lion. You should also post this question there to increase your chances of getting an answer. https://discussions.apple.com/community/mac_os/mac_os_x_v10.7_lion

And in the MacBook Pro forum https://discussions.apple.com/community/notebooks/macbook_pro

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