If Big Sur is available for your Mac, click to begin the download. Method B: Via the Mac App Store
: Ensure you have at least 35.5GB of available storage if upgrading from macOS Sierra or later.
This is the simplest way to get the latest compatible version for your specific Mac. advertisement macOS Big Sur Free Download
: Use Time Machine or another method to back up your files before any major OS update.
If Big Sur doesn't show up in your settings, you can find it directly in the store. How To Install macOS Big Sur | Beginners Step by Step Guide If Big Sur is available for your Mac,
Click the in the top-left corner of your screen.
Select (or System Settings on newer versions). Click on Software Update . : Use Time Machine or another method to
: Connect your Mac to a power source to prevent interruptions during the installation. 3. Official Download Methods Method A: Using Software Update (Recommended)