Upgrade from Remote Administration 6 to ESMC 7 failed

[DennisA 1]

Hi there,

I just tried to upgrade to Server version 7 with the steps provided here (creating a client task with pointing to the Server_x64.msi), but installation fails because of the following error (found in the Event Log) "Product: ESET Management Agent -- Error 1921. Service 'ESET Remote Administrator Agent' (EraAgentSvc) could not be stopped. Verify that you have sufficient privileges to stop system services."

I also can't stop the Agent manually as it's running as a system service. Have tried to reinstall the Agent, but that didn't help. 

Server: Windows Server 2012 Essentials (64-bit)
ESET Remote Administration Server 6.5.522.0
ESET Remote Administration Agent 6.5.522.0

Any tips? 
Thanks!

[MartinK 375]

Could you please provide me trace/installation logs via PM? Also just to verify, haven't you used Software installation task for AGENT upgrade by mistake? Asking because that would also result in such state.

[DennisA 1]

Thanks for your quick reply. You're right, I accidentally selected the Agent_x64.msi instead of the Server_x64.msi. Oops...

Installation completed successfully now. Thanks!