Disk Utility Freezes
MacBook Pro 15" mid-2014, OS 11.6.4. Disk Utility First Aid freezes at 1st Snapshot, so does the computer.
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Safe Boot, (holding Shift key down at startup), does the problem occur in Safe Mode? Could take 10 minutes or more.
Safe mode attempts to repair Disks & clears lots of caches & loads safe Drivers, & prevents loading of 3rd party extensions, so if Safe Mode works try again in regular boot.