Mac Notifications Centre and Siri not restarting

Permissions and security settings on specific Macs, might prevent LockDown Browser from restarting the Notifications Center and Siri during a normal close of the browser after submitting an exam.

We recommend the following steps to restore the default settings on a Macintosh system:

1. Start the system from a power down (not Sleep).
2. Start LockDown Browser
3. Immediately quit LockDown Browser

If the Notifications Centre does not restart right away, these steps usually work:

Open Terminal and enter the following commands:

launchctl load -w /System/Library/LaunchAgents/

killall SystemUIServer

These are the same steps that LockDown Browser uses to restart the Notifications Center.