avast "Firewall NDIS Filter Miniport, Windows7. This is my first time with this problem. All I was trying to do is connect my new blue tooth dongle. My Dell laptop from 2010 does not have Bluetooth. So I bought a Targus Bluetooth 4.0 I did everything that was required. My Computer/or Windows does not recognise that there is anything new installed. Then this message appeared. (avast "Firewall NDIS Filter Miniport ) ............ There are countless websites telling me to download the Driver for avast "Firewall NDIS Filter Miniport. But, I need to know from someone that knows what the problem is before I download anything. I'm almost at the point of returning the product to the shop. Please can anybody help.