Thread: Wiping out OS
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harryb2448

 
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Member Since: Nov 28, 2007
Location: Nambucca Heads Australia
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Mac Specs: iMac i5 2.7GHz, 16GB memory, OS 10.10.1

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Your iMac is over 867MHz? The Leopard disc is a black full retail install DVD?

Okay pop the Leopard disc in the optical drive, reboot and hold down 'C' immediately after the chime. After selecting language go to Utilities in the Menu bar, Disc Utility and select Erase, and Zero the Drive under Security options if you want to be completely sure, format Mac OS Extended (Journalled) under Partition select Apple partitiopn map, back to Installer and run.

Then update to OS X.5.8 via the Apple web site using the Combo Updater from here:-


http://support.apple.com/downloads/M...8_Combo_Update

Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
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