To download the new OS and install it you’ll need to do the next:
- Open App Store.
- Click Updates tab in the top menu.
- You’ll see Software Update — macOS Sierra.
- Click Update.
- Wait for Mac OS download and installation.
- Your Mac will restart when it’s done.
- Now you have Sierra.
Upgrading from OS X Snow Leopard or Lion. If you’re running Snow Leopard (10.6.8) or Lion (10.7) and your Mac supports macOS High Sierra, you will need to upgrade to El Capitan first. Click here for instructions.Get El Capitan from the App Store. Now that High Sierra is available, you should upgrade to High Sierra instead of El Capitan. Click the Download button on the El Capitan page. If your Mac is compatible with El Capitan, a file named Install OS X El Capitan downloads to your Applications folder.If you are running Mac OS X 10.6.7 or earlier: Find out if your Mac can run OS X Yosemite. Run Software Update to upgrade to the latest version of Snow Leopard (v10.6.8). Get OS X Yosemite from the Mac App Store.
How do you update your Mac?
How to update the software on your Mac
- Choose System Preferences from the Apple () menu, then click Software Update to check for updates.
- If any updates are available, click the Update Now button to install them.
- When Software Update says that your Mac is up to date, macOS and all of its apps are also up to date.
How do I update Mojave on Mac?
MacOS Mojave is available as a free update via the Mac App Store. To get it, open the Mac App Store and click the Updates tab. MacOS Mojave should be listed at the top after it’s released. Click the Update button to download the update.
