Deployed the agent from server but fail on such systems. Again tried to install but no client installed?
Post the log for troubleshoot.
How to troubleshoot a failed Altiris Agent push
Disable the UAC/firewall service before try.
https://www-secure.symantec.com/connect/forums/fail-deploy-altiris
You can have try the psexec for deploying
https://www-secure.symantec.com/connect/articles/altiris-client-install-through-psexecexe-tool