Event ID 4741 indicate that "A computer account was created
Computer Account create - Audit
Event ID 4741 indicate that "A computer account was created." There are two scenarios when that event is created. If we are added a computer in a domain and if we created a computer manually in a domain. 4741 event never indicates that a computer is joined in a domain. When a computer is joined in a domain "DNSHostName" attribute should have a valid entry.
Also, we can check the event 4769 & 4624 for domain joined computer.
