Security settings do not allow this Mac to use an external startup disk.
Posted: Tue Apr 06, 2021 10:46 am
- Security Settings Do Not Allow This Mac To Use An External Startup Disk (79.46 KiB) Viewed 367 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.