Mac OS 10.7 'Lion'

Download the Mac OS 10.7 'Lion' Image here
  • This download is the Lion installer for an educational volume license. There is no need to download Lion from the Mac App Store, as is necessary for consumer licenses.
  • As with any upgrade, it is advisable to make a backup of important files before upgrading.
To Install:
  1. Copy the Mac_OS_X_10.7.dmg file to the hard drive of a Mac running OS X 10.6.6 or newer.
  2. Double click to open the .dmg file.
  3. Run the installer.

Useful references from Apple: