Hi Jörg, 1. Start a terminal and use sudo for all commands. 2. Stop the snowagent and xMetering daemon processes with the command lines: launchctl unload /Library/LaunchDaemons/com.snowsoftware.Inventory.plist launchctl unload /Library/LaunchDaemons/com.snowsoftware.Metering.plist 3. Delete all installed files, data files and temporary files with the following command lines: sudo rm –fR /opt/snow sudo rm /Library/LaunchDaemons/com.snowsoftware.Inventory.plist sudo rm /Library/LaunchDaemons/com.snowsoftware.Metering.plist