Trouble following steps for event id 1202, resolving SIDS

I have turned on debugging to try and resolve excessive numbers of event 1202, 0x534 errors. The event suggest that you can use the find command to find account names that are not matched. I do not find the account names when I do this Find, I only find the phrase "cannot find deny." Can anyone point me in the right direction here? General internet searches are not helping.