Before you delete a security realm, you should make sure that you
have created a different security realm and made it the default security
realm. See Change the default
security realm. Do not delete your current default security
To delete a security realm:
If you have not already done so, in the Change Center of the Administration Console, click Lock & Edit (see Use the Change Center).
In the left
pane, select Security Realms.
Realms table, select the checkbox next to the
security realm you want to delete and click
A Delete confirmation window appears.
Yes to confirm the deletion.
To activate these changes, in the Change Center of the Administration Console, click Activate Changes. Not all changes take effect immediately—some require a restart (see Use the Change Center).