. If your specific system is eligible, it will allow you to download a recovery image. Dell Lifecycle Controller

Before proceeding, carefully consider the end‑of‑support implications. Windows Server 2012 R2 no longer receives free security updates, and running it in a production environment exposes your business to significant security risks. If possible, use this reinstallation as an opportunity to migrate to a currently supported version of Windows Server. If you must stay on 2012 R2, ensure you have a plan for Extended Security Updates or carefully isolate the server from the internet.

If you are unable to download the ISO file from the Microsoft Evaluation Center, you can try the following alternative sources: