Prepare BIOS

The BIOS must be properly configured prior to installing macOS.

Need to do only once

In Security menu, set the following settings:

• Security > Security Chip: must be Disabled
• Memory Protection > Execution Prevention: must be Enabled
• Internal Device Access > Bottom Cover Tamper Detection: must be Disabled
• Anti-Theft > Current Setting: must be Disabled
• Anti-Theft > Computrace > Current Setting: must be Disabled
• Secure Boot > Secure Boot: must be Disabled

In Startup menu, set the following options:

• UEFI/Legacy Boot: Both
• UEFI/Legacy Priority: UEFI First
• CSM Support: Yes

Now you can go through the install.