Microsoft starts Windows auto-piracy check

"PCs using Microsoft's automatic Windows update service will be checked for pirate versions of the operating system from today – and dodgy copies will be refused all upgrades except critical security patches.

Users will have the option, in a pop-up box that appears at the start of a scheduled update, to opt out of the validation, but they too will be refused full updates. "

Source:
http://www.pcw.co.uk/personal-computer-world/news/2154739/microsoft-piracy-check-pcs