For Windows server administrator, we have to keep Windows server to have latest hotfix, service pack and OS version. Windows version changes every 2 years. In the past, the age of Windows is longer. We can tide version with server hardware. It can take a chance to upgrade hardware and Windows in one IT change request.

In Cloud generation, virtual machine is running on virtual hardware. It cannot combine Windows version update with hardware. From functional viewpoint, many type of application does not get benefit of Windows version. Why do need to keep every pieces update?

I hope to see the tiny version of Windows for running application and make it like appliance box. We would see a new application sell bundle with virtual machine. 

This is a dream!!!