A decade ago, a database consultant told us a story of helping a bank who was seeing their 3 MS SQL Server databases (on Windows servers) go down every single d

A decade ago, a database consultant told us a story of helping a bank who was seeing their 3 MS SQL Server databases (on Windows servers) go down every single day. He replaced their setup with Oracle and their problems went away. In telling us stories of why he preferred Linux he described how he had set up and managed databases on a hundred Linux servers for a major oil company and they were humming along without a problem, easy to manage, and in contrast he dreaded Windows servers due to memory leaks and whatnot. Anecdotal, I know, but I heard a lot of stories like that a decade ago. I've also heard a lot of stories since then about Windows servers getting better. And I've had to administer each a little bit here and there, and I have to agree with the other commenters that you can't generalize about which is better because it really depends on what you're doing with the servers. But some of those stories from many years ago scared away quite a few people from Windows servers and they'd probably appreciate hearing how Stack Overflow is succeeding with the current generation.