I got a call twice today from this number, they claim they are with Windows Technical and that my computer was sending them messages and they needed to show me how to see what messages were sent to them. The first time I went off on them and hung up, the second time I decided to play along so I told him I was in front of my computer and he told me to hit the windows key and R at the same time, of course I did not do it but told him that I did and that I wasn't seeing any messages. He asked if my computer was on and I told him yes so he told me to hit windows and R at the same time again I told him that I still didn't see anything and I told him that the first person cussed me today and that people from Windows Technical wouldn't cuss a customer. Another way I knew it's was scam is that I have never given out the number that he called on to anybody and it's not listed on anything.