Network inventory audit software

A while back, a new administrator reset some computers' account passwords (i.e., not users' account passwords) in my company's domain, without paying any attention to network inventory audit software. The next day, no one could log on to these machines. Users received the error message You do not have the right to log on to this computer. The computers even rejected members of their own local Administrators group. I tried using the computers' local Administrator accounts to log on, but I received the same error message. To make matters worse, my boss couldn't log on to his notebook. (The administrator hadn't reset my boss's computer's account password.)