I, too, received the same message, stating that they were calling from "Windows Security" and they had recorded specific information from my computer and were shutting it down if I didn't call the 800 number. Of course, I didn't call back. The Attorney General formerly had a number where one could call to report these scams, but it is no longer in service. Just don't fall for this!
Received these calls twice in 2 days. And this voice sounds familiar like somebody's voice about IRS scam.
This is not funny , some people are answering these calls and answering their questions ! Annoying to no end.