How To Unblock Publisher Direct

If you see a blue Windows SmartScreen window stating "Windows protected your PC," the block isn't permanent, but the "Run" button is hidden. Click the More info link under the text. A Run anyway button will appear at the bottom. Click it to proceed with the installation. Disabling the Block via Group Policy (Advanced)

sudo spctl --master-disable

For managed systems, a domain admin may block publishers via Software Restriction Policies or AppLocker. how to unblock publisher