Startup Security Utility -> Click “Allowed” for external USB volumes and changed security to Medium. Wait for the chimes and let go.) and reset SMC as well) Reset PRAM (Restart, hold down Command-Option-P-R during boot. Install the OS that originally came with my Mac (Shift + Option/Alt + Command R) Instead of the Windows logo I get the Apple logo, it boots into the MacOS Recovery mode, and displays the error “The version of macOS on the selected disk needs to be reinstalled”. ![]() HOWEVER this does not work on my new MacBook Pro. I have tried this on multiple different MacBooks and ever single time, it EFI boots into Windows 10 by first displaying the Windows logo. ![]() I used WintoUSB to install Windows 10 on my Sandisk Extreme SSD so I can EFI boot Windows 10 when I hold down “Option” during start up ( works works works). ![]() I have a new 2020 MacBook Pro (with the improved keyboard) and am running most recent version of Catalina.
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