gateway bluetooth drivers

The manufacturer's specification sheet does not mention bluetooth, so it probably does not have a bluetooth adapter built-in:
http://i.walmart.com/i/rb/0088654174664.pdf

You can verify this by looking in Device Manager for any bluetooth entries.

If it doesn't have bluetooth capability built-in, you can buy a bluetooth USB adapter for it like one of these:
http://www.amazon.co.uk/s/?ie=UTF8&keywords=bluetooth+usb+adapters&tag=googhydr-21&index=electronics&hvadid=28638743940&hvpos=1t1&hvexid=&hvnetw=g&hvrand=1421243031622850987&hvpone=&hvptwo=&hvqmt=e&hvdev=c&ref=pd_sl_dxvle5g7v_e