windows services & endpoint problem.

guys i hv provided symantec endpoint 11 by orgnisation n i installed that to my laptop on vista. after fews days it stop getting live updates frm net. so i decide to reinstall it, but after uninstallation it not getting install, the installer runs but rollback after few secs.

i also try clean wipe utility for this also but not succeeded. n now my windows services getting stopped n my desktop setting also blocked. but it comes back in few reboots.

plz guide me to resolve my probs.

thanks