They have called several times in the past year each time I tell them that there is nothing wrong with my computer and the guy goes well your not a computer technician so how do you know. being as I am a computer technician I can tell you that there is nothing wrong and that they do not work for Microsoft. they are calling from 4695550174
I receive calls from this number daily... I have never heard another person on the line and they mostly hang up on me... However today, I answered the call and left the receiver in the desk chair. Time is money to them so the more I leave them on the phone the fewer calls I get... They will hang up eventually but it is fun to mess with them.