I just received a call from this number. They said they were calling from Windows about my computer. I asked who they were, he repeated that he was calling from Windows about my computer. I asked "what computer?". He replied, "Your computer, it might be a desktop or a laptop." I stated that I didn't know who he was and guess what, he hung up on me. The real problem with any call ike this is, they are customarily recorded. The goal is to get the call recipent to say "Yes". Then they can do what they want since they have you recorded as saying "Yes".