How to download and install macOS - Apple Support
Dec 8, 2025 · Download and install current or previous versions of the Mac operating system on compatible Mac computers.
Mac - Official Apple Support
Learn how to set up and use your Mac computer. Find all the topics, resources, and contact options you need for Mac.
Create a bootable installer for macOS - Apple Support
Oct 15, 2025 · Choose your language, if prompted. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.
Update macOS on Mac - Apple Support
Dec 5, 2025 · Update macOS on Mac To maintain your computer's security, stability, and compatibility, Apple recommends using the latest macOS that is compatible with your Mac. macOS updates and …
Find out which macOS your Mac is using - Apple Support
Use About This Mac to see the version of Mac operating system installed on your Mac.
如何下载和安装 macOS - 官方 Apple 支持 (中国)
如何下载和安装 macOS 使用下面任一方式在兼容的 Mac 电脑上下载并安装最新或以前版本的 Mac 操作系统。每个 macOS 都包含适用于这个 macOS 的最新内建 App，包括 Safari 浏览器、“邮件”和“音 …
OS X Mavericks Manuals and Downloads - Apple Support
Software Download Java for OS X 2017-001 Download Windows Migration Assistant v1.0.5.7 (Lion - El Capitan) Download Security Update 2016-004 Mavericks
Official Apple Support
Learn more about popular features and topics, and find resources that will help you with all of your Apple products.
Mac - 官方 Apple 支持
了解如何升级至最新版 macOS 以获得最新的功能和超强的安全性，以及如何让 Mac 自动保持更新。
确定你的 Mac 使用的是哪个 macOS 版本 - 官方 Apple 支持 (中国)
确定你的 Mac 使用的是哪个 macOS 版本 使用“关于本机”确定 Mac 上安装的是哪个 Mac 操作系统 (macOS)，并了解它是不是最新版本。 安装的是哪个 macOS 版本？ 哪些 macOS 版本是最新的？ …