Perform a Time Machine Backupīefore installing any major upgrades, you should always backup your Mac as a fail-safe measure in case something goes wrong. Follow our guide below for all the details on ipgrading to OS X 10.11 El Capitan. Before you install Apple’s latest and greatest desktop operating system, you should take a few a minutes to prepare your machine for the transition. OS X EL Capitan is launching publicly today.
