![]() ![]() ![]() The EFI Boot mostly occurs when having more than one operating system on your Mac, say, you are using Boot Camp Assistant to switch between Windows and macOS.Īs a part of the UEFI specification, the EFI Boot option appears because the Mac firmware finds the boot file \EFI\BOOT\BOOT圆4.EFI on the EFI partition of your internal drive. The EFI partition is able to load the initial system boot-time device drivers on your Mac. When pressing Option at startup, the EFI Boot is a boot-up entry when your Mac detects files in the \EFI\BOOT folder on the EFI partition of your internal disk. This post will explain what is EFI Boot on Mac, why it appears, and how to remove EFI Boot on your Mac. If you are experiencing the same thing as this user from the forum, that is encountering the mysterious EFI Boot when pressing the Option key at startup, you've come to the right place. I find that if I hold down the option key on boot to select the start-up drive one drive icon is labeled LEOPARD and the other is labeled EFI BOOT and not its drive name Snow Leopard, which is how it shows on the desktop. ![]()
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