1.) Open Finder> Select Applications (Typically on the Left-Hand Pane)> Find and select LockDown Browser > Select “File” then “Move to Trash”
Alternatively, just drag the program to the trash bin located at the bottom of the screen.
2.) Now, empty the trash.
If this does not work: you can download/run the LockDown Browser installer a 2nd time, and select the option "Uninstall/Remove" when prompted.
*In some situations, we recommend re-installing LockDown Browser and then immediately run the installer again, to remove LockDown Browser.