If a wireless network is available, you can choose it from the Wi-Fi menu, which is also available in macOS Recovery.

Release the keys when you see an Apple logo, spinning globe, or other startup screen.

If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue.

For Mac Might Restart

During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.

When the new owner starts up the Mac, they can use their own information to complete setup.

MacOS Sierra marks most unofficial apps as unsigned software, so youll need to perform this process to install many third-party apps or programs.

You can do this once per install, or you can disable this security feature altogether.

If asked if you want to keep or discard the file, select keep.

Note that you should only do this if you are certain you trust the publisher of the software.

This will prompt a pop-up with an error message that says Name cant be opened because it was not downloaded from the App Store.

Doing so will open your file and continue with the installation.

In order to allow all software installations, youll first need to restore an installation option that MacOS Sierra got rid of.

Doing so will restore the option you need in the Security Privacy menu.

Doing this will allow you to install software from unsigned developers without having to confirm from within this menu.

You should now be able to install your software as you usually would.

Look for the lock icon, enter your password, and click unlock to proceed with the necessary changes.

Open your software installation file.

Click OK. 3. Open the Apple menu.

Click System Preferences.

Click Security Privacy.

Unlock the menu. 7.

Click Open Anyway.

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