I had the same phone call this evening. I told the person I would investigate his information and he told me the same thing about knowing my license number. Since I'm not sure what my license number is, that wouldn't have been helpful. I just knew i was not letting anyone who called me into my computer. He then told me that my computer was 95% corrupted. With that much corruption I'm sure there would have been some problem that I noticed. In any case I told him several times I was not letting him into my computer.

OMG I just received this unknown call from one lady saying that my computer was in trouble and it has a lot of warning and error in it. Thank you to these people or website that I am right about them. What a scamer!!!!

In a nutshell, got a call from UNKNOWN CALLER at 9pm.  Answered to tell whoever it was to take me off their list and not call so late.  

Same situation.  Said he was calling from Windows about error messages.  I questioned everything and argued everything and kept trying to make him prove who he was for real.  

Long story but basically he told me "trust me" and "I am a Microsoft Certified Technician with a Master's Degree" and to log in and "I will prove myself".  

When I insisted on getting a number to return the call because it was an inappropriate hour and that I didn't believe who he was and needed to get back to them when I was ready, he couldn't give me a number and refused.  Finally he gave me this number you posted (the 646 number).  

But after that he was obviously mad that I wasn't falling for it and questioned everything he said so he proceeded to insult me.  Told me that I was "uncultured", "rude", that he has a higher education that I do and ever will have.  

I got so mad that I called him a FA and hung up.  Be warned!!!!  He called me back and left me a threatening voicemail.  So I am filing reports with any authority I can because if they find them and can take them down then the more ammunition they have the better.

Scam!  Dont believe the hype!!! Got tbe call tonight.  Another reminder not to be naeve in this world or youll get taken to the cleaners!!!

So this guy called, and i knew he was scamming, so i just trolled him super hardcore. We asked if it was the dell computer or the vaio (neither of which we have) he said it was a dell. I said i love Adele, and asked if he liked her music. Then continued trolling.... eventually it ended in "do you have hairy pubes"? then he hung up, lol