Legacy software with incredible backwards compatibility, exponetially more software options, user familiarity, pretty much everything that active directory provides from user management to group policies, the list goes on.
Im a linux guy, but the thought of rolling out even the most user friendly linux distro gives me nightmares.
Aren't they? Changing a legacy app can take years to do the needed research, approval, procurement, and implementation. "Because my IT guy doesn't like Windows" is a terrible reason to undergo that process.
The same with retraining users on a whole new OS. You'll spend hours over the course of months answering "where did my C:\ drive go?". That's a lot of time you'll never get back.
Active Directory provides a lot of tools that are familiar to senior techs and easy enough for junior techs to figure out. I might prefer how Salt Stack works but I don't have time to train dozens of fellow techs.
Linux is cool for a number of reasons, but it isn't a magic easy button and a wise admin doesn't swap out fundamental parts of his tech stack without careful consideration.
I'm in the process of convincing my management to switch to Linux. The most important thing to them is having a way to remotely delete the pc in case it's stolen. Does someone know of a solution in Linux for that?