Backup Exec 2012 - Backup Windows 8

I have installed backup exec 2012 with the last sp but i cann´t do a backup of a machine with windows 8.

i am doing a backup of a machine with windows 7 with windows agent without problems/issues but i cann´t with windows 8.

i know that symantec has a special agent ( desktop ) but i haven´t more information of this.

i want to know if Í´ll can do a backup of a windows 8 machine with windows agent.

salu2

Fernando