Check compatibility

You can upgrade to macOS High Sierra from OS X Mountain Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 14.3GB of available storage space.

Reinstall, Repair, Recovery, macOS High Sierra 10.13 Disk Utility - Instruction included. Mac OS X 10.13 High Sierra Full OS Install - macOS Reinstall/Recovery Repair Utility Complete Factory Reset Disk Drive Disc CD DVD Disk. Jun 07, 2019  If the Mac is running macOS Mojave, open the macOS High Sierra page in the App Store and download the installer from there. – Mac OS X 10.6 Snow Leopard (32-bits) I need something else? Dec 9, 2019 at 2:50 pm. This means that your computer is 32bit you can not run this on 32 bit computers. Nov 14, 2019 at 1:16 pm.

MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later

To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS High Sierra, the installer will let you know.

Make a backup

Leopard

Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.

Get connected

It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.

Download macOS High Sierra

For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.

Macos Sierra Iso Download

If you still need macOS High Sierra, use this App Store link: Get macOS High Sierra.

Begin installation

After downloading, the installer opens automatically.

Macos Sierra For Leopard Download

Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.

If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.

Allow installation to complete

Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.

Macos Sierra For Leopard Mac

Learn more

Macos Sierra For Leopard Download

  • If you have hardware or software that isn't compatible with High Sierra, you might be able to install an earlier macOS, such as Sierra or El Capitan.
  • macOS High Sierra won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
  • You can use macOS Recovery to reinstall macOS.