If you are wondering if you can run El Capitan on an older Mac, rejoice as it’s possible too. But before your Mac can run El Capitan it has to be updated to OS X 10.6.8. So, here are main steps you should take: 1. Install Snow Leopard from install DVD. Update to 10.6.8 using Software Update. Download El Capitan here. About Mac OS X 10.6.8 Update. The 10.6.8 update is recommended for all users running Mac OS X Snow Leopard and includes general operating system fixes that enhance the stability, compatibility, and security of your Mac, including fixes that: Enhance the Mac App Store to get your Mac ready to upgrade to Mac OS X Lion. Download Mac OS X Snow Leopard v10.6 free latest standalone offline DMG image setup for Macintosh. Final Apple Mac OS X Snow Leopard 10.6 is a powerful Mac Operating System with various new features and many enhancements.