Who called from 7186542635

Called as Microsoft support for windows 8, saying my computer is sending lot of error messages and downloading spurious files.

I m getting this call every week but no one is answering on the other side why I don't know, I have called back it will ring over and over, I have even send message it didn't took that written message.

They don't answer and I blow a whistle on them.

Calls everyday - When I answer there is only silence on the other line. Annoying to say the least.

Received a phone call from this bogus number.  Gave them a piece of my mind, and they hung up