Security settings do not allow this Mac to use an external startup disk.

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thaterrormessage
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Security settings do not allow this Mac to use an external startup disk.

Post by thaterrormessage »

Security Settings Do Not Allow This Mac To Use An External Startup Disk
Security Settings Do Not Allow This Mac To Use An External Startup Disk (79.46 KiB) Viewed 363 times

Security settings do not allow this Mac to use an external startup disk.
You can change this by restarting and holding down Command-R to open macOS Recovery, and then choosing Startup Security Utility.
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