how can i install the bluetooth driver in this laptop in windows 7. The installation process tells me that i need to activate the bluetooth device to continue, but how can i activate if till that moment the device doesn't exist. There isn't any button or switch to activate the device manually.

Edited: it's the np-r430 model. I read somewhere (a users forum, not official info) that for Chile and Argentina this models doesn't have built in the bluetooth device, but the US models have it. Maybe for some political and weird reason they send to south american laptops without that. The link of my notebook's specifications in an AR domain: np-r40