On the Athena EPP manager, go to Endpoints > Endpoint Groups and select the endpoint from which you want to uninstall the Athena EPP agent. Click Uninstall Agent, as shown in the following figure.

You can uninstall the Athena EPP agent in Online or Disabled status, and the endpoints must be able to receive the policies distributed from the console. The uninstallation will automatically start silently in the background after the Athena EPP agent on the endpoint receives the uninstallation command.

Click OK in the confirmation window.

Wait for the prompt "Operation successful" to appear on the Athena EPP manager.

The uninstallation is complete once the status of the endpoint becomes Agent Uninstalled.