In some situations you might have to troubleshoot Client issues with the Altiris Symantec Management Agent. You can use the following Windows CMD in order to completely remove the Symantec Management Agent from a Client Computer.
C:\Program Files\Altiris\Altiris Agent\AeXAgentUtil.exe /uninstallagents /clean
This command will uninstall the Symantec Management Agent off the client computer and attempt to clean up the files that it leaves behind. It will also be a good idea to delete the “C:\Program Files\Altiris” folder once it is finished with uninstalling.