MacOS Sierra is here. Learn if your Mac can run Apple's next computer operating system and, if so, how to download and install it.
Before upgrading, it's a good idea to. Then follow these steps: • Open the App Store app on your Mac. • Search the App Store for macOS High Sierra,. • Click the Download button on the High Sierra page. If your Mac is compatible with High Sierra, a file named Install macOS High Sierra downloads to your Applications folder.
• After download is complete, the installer opens automatically. Click Continue and follow the onscreen instructions. You may be asked to sign in with an administrator name and password to install a helper tool, then click Add Helper to continue. If you're using OS X El Capitan v10.11.5 or later, High Sierra conveniently downloads in the background, making it even easier to upgrade your Mac. When the download has completed, you receive a indicating that High Sierra is ready to be installed. Click Install in the notification to get started.