: Go to Settings > Update & Security > Activation to enter your Essentials product key. For 2022, this will convert the "Standard" installation into the "Essentials" edition.
Since there is no separate Essentials ISO, use the Standard edition ISO and activate with your Essentials key. Navigate to the Microsoft Evaluation Center, locate Windows Server 2022 or 2025, select your preferred language, and complete the registration form. Download the ISO file (typically 4-6 GB). During installation, when prompted for a product key, enter your Essentials product key to unlock the correct edition. windows server essentials iso