How to Downgrade to OS X Mountain Lion from OS X Mavericks But it also introduced some bugs and even took away some features without good reason. If you've been frustrated by Mavericks, or have found that an application you frequently use doesn't work with it, here's how to downgrade back to OS X Mountain Lion.
The SD Memory Card Formatter formats SD Memory Card, SDHC Memory Card and SDXC Memory Card (respectively SD/SDHC/SDXC Cards) complying with the SD File System Specification created by the SD Association (SDA).
Mac OS X 10.7 Lion Mac OS X 10.8 Mountain Lion Mac OS X 10.9 Mavericks Mac OS X 10.10 Yosemite Mac OS X 10.11 El Capitan macOS 10.12 Sierra macOS 10.13 High Sierra macOS 10.14 Mojave macOS 10.15 Catalina. MacOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks or Mountain Lion macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks or Mountain Lion Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. STEP 1: Download macOS High Sierra The full operating system is a free download for anyone who has purchased Mac OS X Snow Leopard, Lion, or Mountain Lion or has a Mac preloaded with OS X Mavericks, Yosemite, El Capitan, or macOS Sierra.
It is strongly recommended to use the SD Memory Card Formatter to format SD/SDHC/SDXC Cards rather than using formatting tools provided with individual operating systems. In general, formatting tools provided with operating systems can format various storage media including SD/SDHC/SDXC Cards, but it may not be optimized for SD/SDHC/SDXC Cards and it may result in lower performance.
SD/SDHC/SDXC Cards have a “Protected Area” for SD Card security purposes. The SD Memory Card Formatter does not format the protected area in the SD/SDHC/SDXC Cards. The protected area shall be formatted by an appropriate PC application or SD host devices that provide SD security function.
The SD Memory Card Formatter doesn’t support SD/SDHC/SDXC Card encrypted by the “BitLocker To Go” functionality of Windows. Please format the SD/SDHC/SDXC Card after it has been unlocked.
|Windows||Windows 7 (32/64-bit)|
Windows 8 (32/64-bit)
Windows 8.1 (32/64-bit)
Windows 10 Version 1511 (32/64-bit)
Windows 10 Version 1607 (32/64-bit)
Windows 10 Version 1703 (32/64-bit)
Windows 10 Version 1709 (32/64-bit)
Windows 10 Version 1803 (32/64-bit)
Windows 10 Version 1809 (32/64-bit)
Windows 10 Version 1903 (32/64-bit)
Windows 10 Version 1909 (32/64-bit)
Windows 10 Version 2004 (32/64-bit)
|Mac||Mac OS X 10.7 Lion|
Mac OS X 10.8 Mountain Lion
Mac OS X 10.9 Mavericks
Mac OS X 10.10 Yosemite
Mac OS X 10.11 El Capitan
macOS 10.12 Sierra
macOS 10.13 High Sierra
macOS 10.14 Mojave
macOS 10.15 Catalina
The following interface devices can be used to access SD/SDHC/SDXC memory cards:
Always confirm that the device is compatible with the SD, SDHC or SDXC memory card before formatting.
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Before installing this upgrade, make sure that your Mac is ready.
macOS Big Sur supports most Mac models introduced in 2013 and later.View compatible Mac models
Before you upgrade, make a complete backup with Time Machine, or store your files in iCloud.Learn how to back up your Mac
If the installer needs more storage space to upgrade, you can free up space using tools that come with your Mac.Free up storage space
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.Learn how to download and install macOS Big SurGo to the App Store
Learn 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 Center
Notification 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 Safari
Discover 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 MessagesLearn more on YouTube
Use the expanded editing capabilities in Photos to easily make simple changes and more advanced adjustments to your photos.Learn how to edit your photos
Ask everyone. Our Apple Support Community can help you find answers.Ask now
Answer a few questions and we'll help you find a solution.
macOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. Get even more transparency around your privacy.
The following models are supported:
To see which model you have, click the Apple icon in your menu bar and choose About This Mac.
Before you upgrade, we recommend that you back up your Mac. If your Mac is running OS X Mavericks 10.9 or later, you can upgrade directly to macOS Big Sur. You’ll need the following:
Go to Software Update in System Preferences to find macOS Big Sur. Click Upgrade Now and follow the onscreen instructions.
If you’re running any release from macOS 10.13 to 10.9, you can upgrade to macOS Big Sur from the App Store. If you’re running Mountain Lion 10.8, you will need to upgrade to El Capitan 10.11 first.
If you don’t have broadband access, you can upgrade your Mac at any Apple Store.
For details about your Mac model, click the Apple icon at the top left of your screen and choose About This Mac. These Mac models are compatible with macOS Big Sur:
Requires a broadband internet connection and microphone (built-in or external).
Supported by the following Mac models:
Requires a microphone (built-in or external).
Requires a broadband internet connection.
Requires a Multi-Touch trackpad, Force Touch trackpad, Magic Trackpad, or Magic Mouse.
Force Touch gestures require a Force Touch trackpad.
VoiceOver gestures require a Multi-Touch trackpad, Force Touch trackpad, or Magic Trackpad.
Requires a FaceTime or iSight camera (built-in or external) or USB video class (UVC) camera.
Audio calls require a microphone (built-in or external) and broadband internet connection.
Video calls require a built-in FaceTime camera, an iSight camera (built-in or external), or a USB video class (UVC) camera; and broadband internet connection.
High dynamic range (HDR) video playback is supported by the following Mac models:
Dolby Atmos soundtrack playback is supported by the following Mac models:
Supported by the following Mac models:
Supported by all iPad models with Apple Pencil support:
Requires an iPhone or iPad that supports iOS 12 or later.
Requires an iPhone with iOS 13 or later or an iPad with iPadOS 13 or later.
Requires an iPhone or iPad with a Lightning connector or with USB-C and iOS 8 or later.
Requires an iPhone or iPad with cellular connectivity, a Lightning connector or USB-C, and iOS 8.1 or later. Requires Personal Hotspot service through your carrier.
Requires an iPhone or iPad with a Lightning connector or with USB-C and iOS 10 or later.
Requires an Apple Watch with watchOS 3 or later or an iPhone 5 or later.
Requires an Apple Watch with watchOS 6 or later or an iPhone 6s or later with iOS 13 or later.
Requires a MacBook Pro or MacBook Air with Touch ID, an iPhone 6 or later with iOS 10 or later, or an Apple Watch with watchOS 3 or later.
Requires an iPhone with iOS 8 or later and an activated carrier plan.
Requires an iPhone with iOS 8.1 or later and an activated carrier plan.
Requires an iPhone with iOS 12 or later and a configured Home app.
AirDrop to iOS and iPadOS devices requires an iPhone or iPad with a Lightning connector or with USB-C and iOS 7 or later.
AirPlay Mirroring requires an Apple TV (2nd generation or later).
AirPlay for web video requires an Apple TV (2nd generation or later).
Peer-to-peer AirPlay requires a Mac (2012 or later) and an Apple TV (3rd generation rev A, model A1469 or later) with Apple TV software 7.0 or later.
Requires an external storage device (sold separately).
Requires an iPhone with iOS 14 and a compatible electric vehicle.
Requires an iPhone running iOS 14 or an iPad running iPadOS 14.
Allows Boot Camp installations of Windows 10 on supported Mac models.
Requires Microsoft Office 365, Exchange 2016, Exchange 2013, or Exchange Server 2010. Installing the latest Service Packs is recommended.
Supports OS X 10.7 or later and Windows 7 or later.
Available only to persons age 13 or older in the U.S. and many other countries and regions.
The improved Retouch tool is supported on the following Mac models: