M$ is desperately trying to milk the dying cash-cow by having salesmen push audits of M$’s users.
“Redmondâ€™s compliance troops swooped on 51 per cent of enterprises and partners polled for the 2012 Software Pricing and Licensing Survey by IDC and sponsored by Flexera Software.”
If you want to be free of these parasites, use GNU/Linux. I recommend Debian GNU/Linux. It works for you, not against you.