This article will show you how to install third-party (from an unidentified developer) software (software) on Mac OS X. Mac OS Sierra marks such software as unregistered, so a number of steps must be taken to be able to install any software. You can allow one-time installation or disable the blocker for installing new programs altogether.
Steps
Method 1 of 2: How to get permission to install one program
Step 1. Download the software (as usual) from the Internet
If the system asks if you want to save the file, answer in the affirmative. Please note that you can save a file only if you are sure of its reliability and safety.
Step 2. Run the downloaded file
A pop-up window will appear on the screen with the following error message: "The program [name] could not be launched because it was not downloaded from the App Store."
Step 3. Click OK
The popup will be closed.
Step 4. Open the Apple menu
To do this, click on the Apple logo in the upper left corner of the screen. A dropdown menu will open.
Step 5. Click System Preferences
It's near the top of the drop-down menu.
Step 6. Click on Protection and Security
It's near the top of the System Preferences window.
Step 7. Click on the lock icon
It's in the lower left corner of the window.
Step 8. Enter your password and then click Unblock
Now you can edit the menu items.
Step 9. Click Open
It's next to the downloaded file name.
Step 10. Click Open when prompted
The installation file will open allowing you to install the program.
Method 2 of 2: How to get permission to install any software
Step 1. Open Spotlight
To do this, click on the magnifying glass icon in the upper right corner of the screen. To allow the installation of any programs, you must first activate the installation option, which is blocked in Mac OS Sierra.
Step 2. Enter Terminal and then click on the Terminal icon
It will appear directly below the Spotlight search bar.
Step 3. In Terminal, enter
sudo spctl --master-disable
and press ⏎ Return.
This command enables the installation option.
Step 4. Enter your password
Enter the password you use to log in to Mac OS X. The installation option will be activated from the Security & Privacy menu.
Step 5. Open the Apple menu
To do this, click on the Apple logo in the upper left corner of the screen. A dropdown menu will open.
Step 6. Click System Preferences
It's near the top of the drop-down menu.
Step 7. Click on Protection and Security
It's near the top of the System Preferences window.
Step 8. Click on the lock icon
It's in the lower left corner of the window.
Step 9. Enter your password and then click Unblock
Now you can edit the menu items.
Step 10. Check the box next to the Any source option
It's in the "Allow programs downloaded from" section at the bottom of the window. A pop-up window will open.
Step 11. Click Allow from Any Source when prompted
Now you can install any programs without having to confirm their origin.
- If no third-party software has been installed within 30 days, you will have to enable the install option again.
- Click the padlock to prevent further changes.
Step 12. Install the software
Now you can install the program (as usual).
Advice
- Some third-party programs are registered with the App Store, but the number is relatively small.
- If you downloaded the installation file but cannot open it because the system prohibits working with third-party software, go to the Downloads section in Finder. Right-click on the downloaded file and select "Open" from the menu. Then enter the administrator password.