Posted 21 August 2009 - 01:37 PM
Lock means just that. It preserves the state of the system, and then locks it. the only way to open it back up is to supply the password for that account. Students at my university do that in the labs all the time, then walk away for the day. Then the only way to get back into the system is to use the admin password, or reboot the system. Incidentally, using the admin password does not unlock the user account, it just open up the admin account.