HI, AdamLin
thanks for your input
I'm sorry I put the configuration of the Zone, anyway when i created another policy in the same zone I was able to deactivate the first one.
I have the following policy
set security policies from-zone trust to-zone untrust policy data match source-address w.x.y.z
set security policies from-zone trust to-zone untrust policy data match destination-address w.x.y.z
set security policies from-zone trust to-zone untrust policy data match application any
set security policies from-zone trust to-zone untrust policy data then permit
deactivate security policies from-zone trust to-zone untrust policy data
i couldn't deactivate it, until I created another one
Regards,
Ibrahim