I've completed a migration of a secondary domain into our primary domain. I essentially merged the two. I used the ADMT tool, and have successfully completed the migration. Everything is functioning well, and I have no problems.
During an audit, the auditors identified the built-in Administrator account from the old domain, and wanted to know if we can get rid of it. During the migration we disabled the ID and renamed it to something other than "Administrator".
As far as I know the ID is not needed anymore, but I wanted to verify before I actually delete the ID.
Is it safe to delete?