View unmanaged computers
Unmanaged computers are computers without an ESET application deployed, with only the Kaseya agent running. Unmanaged computers are, by default, not listed in the list of computers.

Filter the view to list unmanaged computers (only).

After the unmanaged computers are filtered, the unmanaged computers are listed in grey rows.

Now you can deploy the installer with the ESET application to the selected computer.

With an ESET application installed, the computer becomes managed and visible in the Computers section.