Before installing this upgrade, make sure that your Mac is ready.
When it has finished downloading all it needs, the installer screen will then ask you to restart the Mac – but don’t! At this point ABORT the install by quitting the installer app. Next we will recreate the full installer from all the downloaded parts. This will restore the ability to create an install media USB. Do the following. Note: the El Capitan installer must be in the Mac's root application folder for this to work as the terminal command goes there to get it. Also the Flash drive must be formatted with a GUID partition to boot the OS (El Capitan on Flash boot drive). The Mac App Store is the default way to upgrade or install macOS, but it doesn’t work for everyone. Maybe you’ve got multiple Macs and a limited amount of bandwidth, and don’t want to download the entire operating system for every system. Or maybe you’re looking to install the operating system from scratch. Notification Center. A new design combines notifications and widgets in a single view for more information at a glance. Notifications are now grouped by app, and many are interactive — letting you do things like play new podcast episodes or learn more about Calendar invitations. Learn how to set up and use macOS. Find all the topics, resources, and contact options you need for macOS.
macOS Big Sur supports most Mac models introduced in 2013 and later.
View compatible Mac modelsBefore you upgrade, make a complete backup with Time Machine, or store your files in iCloud.
Learn how to back up your MacIf the installer needs more storage space to upgrade, you can free up space using tools that come with your Mac.
Free up storage spaceIf 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.
Learn how to download and install macOS Big SurGo to the App StoreLearn about some of the new features of macOS Big Sur.
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.
Use Control CenterNotification Center puts notifications and>
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.
Get to know SafariDiscover great places around the world and navigate easier with guides, cycling directions, indoor maps, Look Around, electric vehicle routing, and more.
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.
Use MessagesUse the expanded editing capabilities in Photos to easily make simple changes and more advanced adjustments to your photos.
Learn how to edit your photosAsk everyone. Our Apple Support Community can help you find answers.
Ask nowAnswer a few questions and we'll help you find a solution.