: Use Time Machine or another method to back up your files before any major OS update.
: Ensure you have at least 35.5GB of available storage if upgrading from macOS Sierra or later. advertisement macOS Big Sur Free Download
To download macOS Big Sur (version 11) for free, you should always use official Apple sources to ensure the software is safe and authentic. Apple provides this update at no cost for compatible Mac hardware. 1. Check Device Compatibility : Use Time Machine or another method to
Select (or System Settings on newer versions). Click on Software Update . Apple provides this update at no cost for
Before downloading, verify that your Mac is officially supported. Big Sur requires a 64-bit Intel or Apple Silicon (M1) processor and at least 4GB of RAM. : 2015 or later MacBook Air : 2013 or later MacBook Pro : Late 2013 or later Mac mini : 2014 or later iMac : 2014 or later iMac Pro : 2017 or later Mac Pro : 2013 or later 2. Prepare Your Mac