Hi,
Still not fixed - nothing in 6.2.4 or 6.2.5 changed this part of the agent. Remaining problem is now tracked in https://github.com/netxms/netxms/issues/3621 (#3137 was closed after the split).
To move it forward, please post:
exact warning lines from the server log - package name in them shows which part of the agent produces the duplicates
nxagentd log with debug level 6 for tag "winnt", covering a full logon and logoff
System.InstalledProducts table taken twice - once with a user logged on, once without
whether these are RDS/terminal servers, and whether profiles are roaming, FSLogix or UPD