low disk free on windows

[biloude]

hello, I am a newbi one zabbix and I installed version 1.1.4
I would monitoring on my different hard disk, but when i want create an trigger on H: drives
I have an error message : No such host (Windows_t) or monitored parameter (vfs.fs.size[h:,free])
How to make ?
thanks

[biloude]

re

I have found, i should make create an item on h: