They do have a monopoly on Windows licenses, and they are trying to leverage that to sell cloud hosting of Windows servers, which they do not have a monopoly on

They do have a monopoly on Windows licenses, and they are trying to leverage that to sell cloud hosting of Windows servers, which they do not have a monopoly on. In this case Microsoft's defense would probably be "Windows is not the only OS available", which may or may not be accepted by a government (it's gone both ways for them in the past).