Richard. B Mann
Level 1 (144 points)
Desktops

Q: reinstalling 10.7

I would like to delete all on my HD and reinstall 10.7

How is it done.

Can I download 10.7 app without paying again

Or

Can i make a copy of 10.7, how is it done.

or

when I have deleted everything, does it tell me to reinstall

Richard

MacBook Pro, Mac OS X (10.7)

Posted on Apr 24, 2012 10:20 AM

by Niel,Solvedanswer
Niel Niel
Level 10 (314,533 points)
Mac OS X
A:

Restart with the Option key held down, tab to Lion's recovery partition, use the Disk Utility there to erase the drive, and install a new OS.

 

(65939)

Posted on Apr 24, 2012 10:22 AM

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Richard. B Mann

Q: reinstalling 10.7

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  • Helpful answers

  • by Niel,Solvedanswer

    Niel Niel Apr 24, 2012 10:22 AM in response to Richard. B Mann
    Level 10 (314,533 points)
    Mac OS X
    Apr 24, 2012 10:22 AM in response to Richard. B Mann

    Restart with the Option key held down, tab to Lion's recovery partition, use the Disk Utility there to erase the drive, and install a new OS.

     

    (65939)

  • by Kappy,Helpful

    Kappy Kappy Apr 24, 2012 10:23 AM in response to Richard. B Mann
    Level 10 (271,850 points)
    Desktops
    Apr 24, 2012 10:23 AM in response to Richard. B Mann

    Install or Reinstall Lion from Scratch

     

    If possible backup your files to an external drive or second internal drive.

     

    Boot to the Recovery HD:


     

    Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.

     

    Erase the hard drive:

     

     

    1. Select Disk Utility from the main menu and click on the Continue button.
    2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area.  If it does not say "Verified" then the drive is failing or has failed and will need replacing.  SMART info will not be reported  on external drives. Otherwise, click on the Erase tab in the DU main window.
    3. Set the format type to Mac OS Extended (Journaled.) Click on the Erase button and wait until the process has completed.
    4. Quit DU and return to the main menu.

     

    Reinstall Lion: Select Reinstall Lion and click on the Install button.

     

    Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.