Mac book displays unrecoverable error

Ijay_udolisa wrote:

The error froze the system, I was unable to function . And it subsequently the system went blank for over 1hr. I was trying all sorts and had to hold the power button down for 20 seconds and it restarted. This really rattled me. So what is the root cause of the issue?

You can always force quit a shutdown by holding the power button/TouchID for ~6-10 sec.

Force Shut down your Mac.

reboot as normal and see where this leaves you.

Log out, sleep, wake, restart or shut down your Mac

Shut down or restart your Mac - Apple Support

Ijay_udolisa wrote:

My Mac book suddenly displays unrecoverable error… security agent was unable to create requested mechanism built in:unlock- keychain.

What is the effect of this error ....

See if there is anything here: SecurityAgent was unable to create reques… - Apple Community