[martinald]

There's often dozens of Windows servers installed on site in millions of offices around the world, doing various tasks (email, active directory, file storage, etc).

I'm sure if you looked at "servers installed in a data centre" then it would be closer to what you expect. But there are so many servers doing "boring" jobs in cupboards youll never see it totally skews the figures.

[yakz]

But if you looked at “servers installed in a data centre” what you’d discover is that there’s millions of servers in just one building.

[wumpus]

Perhaps we could divide the statistics into "unnecessary servers Microsoft forced you to run" and "servers you actually need"?

[Ayesh]

This is so true! Most of the in-house data centers I had seen had Windows and they didn't really bother to even think about changing. It's totally different from cloud service providers, that some of them don't even provide a Windows server option.