Uninstall the Download manager. It has SecuRom. You don't need it anyhow.
Further to this, I had the download manager installed and experienced all manner of slowdowns on my system due to the "core.exe" shit that loaded on system startup. Uninstalling EADM and associated EAL and Core entries in the registry fixed this. I checked for standard securom entries in registry but did not find anything. Whatever it is, I concur - EADM is a big 'do not want'.