Who called from 8045648875

Caller pretends to be from "Windows Technical Department read scam. He is calling to help read rip you off.

They keep calling and wanting money

Scam trying to tell me I have serious problems with my Windows computer.

1. Called on 4-6-17 at 1:03pm said he is associated with Microsoft and I have a problem with my computer.  I told he is was full of crap, do not call again and good bye.  Since then he has called back twice and did not answer the phone.
2. Called on 4-6-17 at 4:39pm - no answer
3. Called on 4-7-17 at 10:43am - no answer

Left no message