![]() Then double-click the file within, named InstallOS.pkg.įollow the onscreen instructions, which will guide you through the steps necessary to install. Install the macOS installerĭouble-click the downloaded file to open a window showing its contents. A file named InstallOS.dmg will download to your Mac. If you still need macOS Sierra, use this link: Download macOS Sierra. Download macOS Sierraįor the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system. ![]() ![]() If you're using a Mac notebook computer, plug it into AC power. It takes time to download and install macOS, so make sure that you have a reliable Internet connection. ![]() Time Machine makes it simple, and other backup methods are also available. Make a backupīefore installing any upgrade, it’s a good idea to back up your Mac. If your Mac isn't compatible with macOS Sierra, the installer will let you know. To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . MacBook Pro introduced in mid 2010 or later MacBook Air introduced in late 2010 or later ![]() The dmg file is consists of 4.9GB and I will show you how you can download the dmg file. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.īefore going to download MacOS High Sierra dmg file make sure where you want to install the MacOS High Sierra Operating system because if you are Mac user and you are curious to download and install MacOS High Sierra on Mac computer, Needless to say, you need to download MacOS High Sierra from App Store. You can upgrade to macOS Sierra from OS X Lion or later on any of the following Mac models. ![]()
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