For the past 2 weeks we keep getting a phone call from, an asian sounding man, a representative from microsoft windows 7 computor stating that we need to update the system and he always wants pertainant information. We keep telling him that we don't have a windows computer. I don't believe in this day and age that microsoft would be making phone calls instead of the internet. They could reach more people at one time that way. Does microsoft have people making phone calls? How can I stop these phone calls we are on the do not call list.