Upgrade to macOS Big Sur

Welcome to the crash course on how to use Mac Operating System (commonly referred to as Mac OS or Macos ). If you have recently switched from Windows to Mac OS X on an Apple Macbook or iMac, the differences between the two operating systems might seem confusing, frustrating and even a bit overwhelming at first.

1. Welcome to the 2014-2015 school year at NOHS! This website is for my students and their parents. You will find lots of great information as well as assignments, due dates for assessments and projects and great resources to help you understand confusing topics in science!
2. Mac service and repair. Learn about AppleCare+ and the Apple limited warranty coverage, start a service request for your Mac, and find out how to prepare your Mac for service.

Before installing this upgrade, make sure that your Mac is ready.

Check compatibility

macOS Big Sur supports most Mac models introduced in 2013 and later.

Make a backup

Before you upgrade, make a complete backup with Time Machine, or store your files in iCloud.

Free up space

If the installer needs more storage space to upgrade, you can free up space using tools that come with your Mac.

Download macOS Big Sur

If you’re using macOS Mojave or later, choose Apple menu  > System Preferences, then click Software Update. If you’re using an earlier macOS, use the App Store instead.

Get to know macOS Big Sur

Learn about some of the new features of macOS Big Sur.

Control Center

Control Center brings favorite controls such as Bluetooth, Wi-Fi, Do Not Disturb, and Sound together in a single place—so you can easily adjust them at any time.

Notification Center

Notification Center puts notifications and>

Safari

Customize your start page, navigate with ease using the new tab bar, and access a new privacy report to see just how Safari protects your privacy as you browse.

Messages

Send messages to friends and family using new tools that make it easier to keep track of group conversations and give you fun, engaging ways to express yourself.

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Photos

Use the expanded editing capabilities in Photos to easily make simple changes and more advanced adjustments to your photos.

Have a question?

Ask everyone. Our Apple Support Community can help you find answers.

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