Best Mac applications

How to install software from unknown developers on a Mac 

This article will show you how to install third-party (uninstalled) software on Mac OS X. With Mac OS Sierra, such software is marked as unregistered, so you need to follow a few steps to be able to install any software. You can either allow a one-time installation or turn off the new software installation blocker altogether.

• Download software (as usual) from the internet. If the system asks if you want to save the file, answer yes. Note that you may only save a file if you are sure that it is safe and secure.

• Run the downloaded file. A pop-up window will appear with the following error message: "Program [name] cannot be launched because it has not been downloaded from the App Store".

• Click OK. The pop-up window will be closed.

• Open the Apple menu. To do so, click on the Apple logo in the top left corner of the screen. A drop-down menu will open.

• Click System Settings. This option is located at the top of the drop-down menu.

• Click on Protection and Security. This option is located at the top of the System Preferences window.

• Click on the lock icon. It is located in the bottom left corner of the window.

• Enter your password and then click Unlock. You can now edit menu items.

• Click Open. This option is next to the name of the downloaded file.

• Click Open when prompted. The installation file will be opened, allowing you to install the programme.