Windows 2022 Servers Unexpectedly Upgrading to 2025, Aaaargh!

Posted by Fatboy40@reddit | sysadmin | View on Reddit | 443 comments

Arriving at work this morning, an "SME" sized business in the UK, something seemed a little off. Further investigation showed that all of our Windows 2022 Servers had either upgraded themselves to 2025 overnight or were about to do so. This obviously came as a shock as we're not at the point to do so for many reasons and the required licensing would not be present.

We manage the updating of clients and servers using the product Heimdal, so I would be surprised if this instigated the update, so our number one concern is why the update occured and how to prevent it.

Is 2025 being pushed out as a simple Windows update to our servers, just like "Patch Tuesday" events, have we missed something we should have set or are we just unlucky?

Is this happening to anyone else?