![]() ![]() Use the code to redeem a download of Mountain Lion from the App Store. Purchase a redemption code at the Online Apple Store. ![]() Download the relevant macOS or OS X installer from Apple, then use Terminal to create a USB installer you can boot up from. You can download the following versions 10.13, 10.14, 10.15, 11, 12 & 13. To upgrade to Mountain Lion you must have Snow Leopard 10.6.8 or Lion installed. Install macOS or OS X from Internet Recovery Mode, which you can boot into by holding option+command+R while your Mac powers up. The Installer window has a padlock in the top right corner you can click to see the certificate details. The Mac App Store will be your main way to download macOS. To get it, open the Mac App Store and click the Updates tab. The applications are available, but they will be not updated anymore. For older OS’s that you can now download directly from the web (Sierra, El Capitan, Yosemite), open the. MacOS High Sierra is available as a free update via the Mac App Store. Improves VoiceOver navigation when viewing PDF documents in Preview. This update: Improves compatibility with certain third-party USB audio devices. ![]() If Software Update finds new software, click the Update or Upgrade button to download and install it. The macOS High Sierra 10.13.2 update improves the stability, compatibility and security of your Mac, and is recommended for all users. Or in earlier versions of macOS, choose Apple menu > System Preferences, then click Software Update. Click General in the sidebar, then click Software Update on the right. The development of the old versions is discontinued. From the Apple menu in the corner of your screen, choose System Settings. In each case, Apple recommends that you first. Requirements: Intel-based Mac or Mac with Apple silicon using macOS Sonoma 14. Choose from the following to get the official macOS update and directly from Apple. Use the correct version, and don't try to use a version intended for an earlier operating system. There is a specific version of OnyX for each major version of the operating system. OnyX is a reliable application which provides a clean interface to many tasks that would otherwise require complex commands to be typed using a command-line interface. Select Macintosh HD (or the name of your target Mac drive to format and clean install Sierra onto), then choose the Erase button. OnyX is a multifunction utility that you can use to verify the structure of the system files run miscellaneous maintenance and cleaning tasks configure parameters in the Finder, Dock, Safari, and some Apple applications delete caches remove certain problematic folders and files rebuild various databases and indexes and more. ![]()
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