nevermind i've solved the problem

i don't know where it came from but by simple unistall input remapper and reput all the setting at their originaly state (hardware config and reinstal the appel keyboard) , then reboot , and after that reinstall the input remapper in a way i suppose more properly :
setting the keyboard in the hardware manager , delete the folder apple keyboard, reboot , install the input remapper and reboot all work perfectly
anyway thanks for your attention

ps : input remapper is really what a bootcamp user need and it should be install with the bootcamp driver instead of the crappy/bugged driver from apple