This is a scam call.  They say they are with "Windows Security" and attempt to scam you into providing computer information and allow them access to your computer remotely.
It is always a man with a middle eastern or Asian accent.
I keep them on the line and mess with them every time they call.

annoying as hell scam. they have been calling me for over a year claiming to be windows security, when they started calling I didn't even have a computer. It's gotten bad, they called me 4 times today already. I started being very rude. I think I'm going to start reading the bible to them.

Middle Eastern accent he says he is with Windows Technical Department and he is getting arrows showing I am being attacked. He wants me to do what he tells me to turn on my computer. They have been calling for some time. I always tell them I do not have a computer only a smart phone and provider takes care of everything.  He wants to know what kind of a phone I have. He stays on the line until the line gets a lot of static static. My son talked to him one time and they wanted to sell some service at $180 a month. Pure scam.