Press Enter, type your password, and wait for the process to complete. Step 3: Install macOS Sierra 10.12.6
10.12.6 (16G29 / 16G2136) Release Date: July 19, 2017 (last security update: 2020) Reviewed on: MacBook Pro (Retina, 13-inch, Early 2015) & Mac mini (Late 2012)
: Your Mac must be running OS X 10.7.5 or later to perform the upgrade. work download macos sierra 1012 6
Type your Mac’s administrator password when prompted (no characters will show on screen) and press .
You will need at least 10GB of free space, though 20GB+ is recommended. Step 1: Safely Download macOS Sierra 10.12.6 Press Enter, type your password, and wait for
Once downloaded, you cannot simply run the installer on a Mac running macOS Catalina or newer (10.15+) due to certificate expiration.
Ensure your system time matches the era of the operating system using the Terminal date command mentioned above, or recreate the bootable USB drive using a freshly downloaded installer file. You will need at least 10GB of free
Your Mac must be running OS X Lion 10.7.5 or later to perform the upgrade. Compatible Models: MacBook: Late 2009 or newer. MacBook Pro: Mid 2010 or newer. MacBook Air: Late 2010 or newer. Mac Mini / Mac Pro: Mid 2010 or newer. iMac: Late 2009 or newer. 2. Official Download Methods
: Agree to the terms and select your main hard drive. Your Mac will restart multiple times during this process.
Try the download again. If the problem persists, use the full installer method (Method 3 above) to obtain the complete macOS Sierra installer via the InstallOS.dmg file.
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