My wife got the call, "twice" and they indicated it was a "Windows security issue" and said it was "URGENT" and she would "lose everything!"...the guy went my "Eric" but I am guessing his name was Mohammed, and he was not from MSFT.  I insisted he tell me the name of the company he was with, and after I refused to believe "Windows tech support" he told me the name of the company was "Technical Support"  I asked him again and when he confirmed, I laughed out loud at his dumb a** and asked him to send me an email indicating his company & the purpose of his call (can you believe I am still waiting?!).  What a fckn' joke, they are the worst I have ever seen, DO NOT RESPOND to ANY of their requests for data...this is an international "tie line" to India/Pakistan/Asia via Seattle....no connection to MSFT, USA or your operating system...complete BS!