[Zuider]

I am guessing that these are petty crooks trying to cash in on the market for Windows keys. They need something that looks valid, so their victim will pay. The owner of the Windows key will not be harmed apart from the harassment by phone, and the buyer who got stiffed has little chance for redress, except to get the scammer's current alias banned.

[helvetican]

I think I have mislead you, sorry. He was asking for the Win keyboard key, to make me open the Start menu. I think he was going to go similar to this article http://www.makeuseof.com/tag/anatomy-scam-windows-tech-suppo...

[Zuider]

Ah, I understand. I must have a criminal mind. to have come up with a scam that no-one is using yet.