The startup screen may vary depending on your Mac model、Varies depending on factors such as operating system (macOS)。Some screens, such as the ban sign or question mark, mean you need to solve a problem first，Then the Mac can complete booting。For all Mac models，When you see the Finder menu bar、Desktop and Dock，This means that the startup is complete。today，The editor of MacW will take you to understand what the various interfaces displayed when Mac starts up represent.。 1. 禁止符号 一个由直线或斜杠穿过的圆圈意味着选定的启动磁盘包含Mac操作系统，But it's not macOS for your Mac。You should reinstall macOS on this disk。 2. 问号 带问号的文件夹意味...