HOW TO UPDATE IMAC OPERATING SYSTEM HOW TO
If your System Preferences doesnt include Software Update, learn how to upgrade to macOS Monterey or upgrade to an older macOS, and use the Updates tab of the App Store app to get app updates. In the System Preferences window, click Software Update. If an error occurs while installing an update or upgrade, learn how to resolve installation issues. From the Apple menu in the corner of your screen, choose System Preferences. If you downloaded any apps from the App Store, use the App Store to get updates for those apps. When Software Update says that your Mac is up to date, then macOS and all of the apps it installs are up to date, including Safari, Messages, Mail, Music, Photos, FaceTime, and Calendar. It is the primary operating system for Apples Mac computers.Within the market of desktop and laptop computers it is the second most widely used desktop OS, after Microsoft Windows and ahead of Chrome OS. Software Update shows only upgrades that are compatible with your Mac. macOS (/ m æ k o s / previously Mac OS X and later OS X) is a proprietary graphical operating system developed and marketed by Apple Inc. Upgrade Now installs a major new version with a new name, such as macOS Monterey.Update Now installs the latest updates for the currently installed version, such as an update from macOS Big Sur 11.5 to macOS Big Sur 11.6.Under 'Macintosh HD,' check if you have enough storage space available. Select 'About This Mac' from the drop down menu. If your System Preferences doesn't include Software Update, learn how to upgrade to macOS Monterey or upgrade to an older macOS, and use the Updates tab of the App Store app to get app updates. From the menu bar on your Mac, select the Apple icon on the top left.
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From the Apple menu in the corner of your screen, choose System Preferences.
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Then follow these steps to find and install any available software updates or upgrades. Before you get started, it's a good idea to back up your Mac.