These guys call me every month. sometimes I toy with them other times I go off on them depending on my mood. Today I yelled at him and told him the only person trying to scam me was him. And he asked how did I think it was a scam and to be honest (possible racial profiling here and forgive me for that) it was his heavy middle eastern accent and saying that someone was "hacking" my computer.
And I told him that Microsoft would never ever call me. Ever. I told him in not so politely terms to F**K Off and never call me again. Hung up on him and *60 the number.

Scammer with a thick accent, would not give his name, claimed he was calling from Microsoft. Do not talk to these crooks.

Reported to DNC Registry and local authorities for criminal activity as well as FBI.

I got the exact same message and told him my number was on the do not call federal registry and he said this is not a sales call and do not argue with me or you will be sorry.

No one on the other end of the line. Too bad... I was ready to go into the "But, I don't see nothing on the screen" act. Oh, well... After about 15 seconds, I rang off.