Hello Natalia, I am sorry for the delay in the response. I was trying to replicate a use case like the one suggested.
Unfortunately, it is not possible to use the agentless option for Windows.
Without the possibility of deploying Wazuh agents on the servers.
Wazuh has the ability to receive logs in Rsyslog format without the need to deploy a Wazuh agent on the host. This is a solution for systems where software such as firewalls and switches cannot be installed, although it can also be used for linux hosts that have Rsyslog integrated (ubuntu). Wazuh also supports receiving logs via Logstash, which can be installed on Windows, however, you should also install the agent.
There are solutions for Rsyslogs windows, but it is not a way tested by Wazuh for this OS.
I hope this information is helpful.
Regards!