Hello Thorsten,
what operating system are you attempting to run HiveMQ on?
Are you being presented with a message concerning privileges
when following our installation guide?
On Linux HiveMQ does not require root privileges to run.
Our prefered installation directory is /opt/hivemq for which
your user may not have the necessary permissions.
On Windows administrator privileges are usually only required when running
HiveMQ as a service.
This thread might be of interest to you.
Regards,
Finn from the HiveMQ team