o VB installation failed! Please check your security & privacy o How to check if I am running macOS Catalina o How to increase scaling o How to increase scaling when I cannot find the menu bar Running MetaTrader for Mac app for the first time 1. Go to System Preferences > Software Update. Power your Mac back on and hold down the Command + Option + R keys until you see a. the installation failed mac catalina 6 “Installation Failed”.