Make sure that the General section of the the Security & Privacy pane is selected. Open the Security & Privacy pane by clicking Security & Privacy. This can be done by either clicking on the System Preferences icon in the Dock or by going to Apple Menu > System Preferences. In the meantime, Users can follow the directions below to prevent this error message from appearing Directions: Physical media, and the error below is displayed:
Install or run some applications downloaded from the internet or stored on
Sometimes, when a known developer (such as Microsoft or PowerSchool) needs to update their application's code to cofirm their 'identity' with Apple, an error may occur. By default, Mac OS 10.8.x, 10.9.x, 10.10.x, 10.11.x and macOS only allows users to install or run applicationsįrom 'verified sources'.