How to turn on ‘install App from anywhere’ on macOS Sierra 10.12 and above
In System Preferences >> Security & Privacy >> Allow apps downloaded from you cannot see Anywhere
when you want to install an App not from AppStore or any developer who is NOT identified.
Open your Terminal
Type in
sudo spctl --master-disable
Press
enter
then type in your system passwordRe-launch – (close then open) your System Preferences setting panel then you can see the option
Anywhere
Done