Vahids Posted December 1, 2020 Share Posted December 1, 2020 Hi, I have Catalina installed on my build and I want to switch to big Sur by a fresh install.I got this error and I didn't find any solution in Internet. My system config is:Motherboard: Giga Z370 HD3CPU: Intel i3 8100VGA: RX570I successfully booted another build with same EFI:MB: Giga Z170 UD3 GamingCPU: Intel 6600KVGA: RX580Thanks! EFI.zip Link to comment Share on other sites More sharing options...
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