In the Windows Control Panel, select Programs and Features. (Depending on your version of Windows, you might have to select Programs before you can select Programs and Features.)
Right-click on the FireEye Endpoint Agent you want to uninstall and select Uninstall.
Select Yes when prompted to confirm that you want to uninstall the agent software and to similar confirmation prompts.
Important
A reboot is necessary after uninstalling TrellixEndpoint Security Agent (HX) 24.9 and before installing the 25.12 agent.
Important
If Group Policy is used to deploy the Endpoint Security Agent (HX), it can only be uninstalled/upgraded via Group Policy, and not manually uninstalled via Apps & features, or upgraded with Server.
Note
Artifacts that remain in the C:\Windows\FireEye folder after the agent software has been uninstalled will be deleted the next time the endpoint host is rebooted.
If a Windows agent uninstall attempt fails because the binary is missing or corrupt or because the ProgramData/FireEye or Program Files/FireEye directories are missing or corrupt, reinstall the agent using command-line commands (msiexec /i xagt.msi /qn) and then uninstall it.