1. Insert the OSX Installation Disc and Reboot the computer from the disc by holding “c” during boot until you hear the chime.
  2. Select Your Language, press “next”
  3. Do Not Continue the Installation!  Select “Disk Utility” from the “Utility” Menu
  4. Select Desired Hard Disk in left Column. (Generally Macintosh HD)
  5. Select the “First Aid” tab
  6. Click “Verify Disk”
    1. Click “Repair Disk” if needed
  1. Plug-in your External Disk you previously stored the new Image on
  2. Select Desired Hard Disk in left Column. (Generally Macintosh HD)
  3. Select the “Restore” tab
  4. Drag Desired Hard Disk to Destination Box (Generally Macintosh HD)
  5. Click “Image” in Source Box
    1. Choose Your Newest Image from your external disk
  6. Confirm Settings (check the box to “erase Destination”)
  7. Click Restore, Confirm Erase. Restore will Begin, this may take some time (~30-60 minutes)
  8. Your Master Image has been applied!  Quit the Utility and Installer and restart to Hard Disk
  9. Rename Computer in Sharing Panel.  Verify system setup.
  10. Applying Master Image is Complete!