Help! A guy just rang our phone and asked my wife to turn on our PC. She hung up. It rang again and a guy said he was calling as some error messages that are on our machine are affecting his business!! He asked me to type in AMMYY into google and click "run this software". I told him i wasnt comfortable with that and i ended the call. ***?? I have never had that before, he claimed he worked for Microsoft. Has anyone had this before? I dont see how our PC would affect any businesses!!