Hello Mohammed Abdelrahman,
When you move from Windows Server 2022 Standard Evaluation to a fully licensed Standard edition, the process is straightforward but must be done correctly to avoid reinstalling. You cannot simply enter a retail product key into the evaluation build because evaluation editions are technically a different SKU. The supported method is to perform an edition upgrade using the DISM command. Open an elevated Command Prompt and run:
DISM /online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula
Replace the Xs with your purchased Standard product key. This command converts the evaluation edition into the licensed Standard edition without reinstalling or losing data. After the command completes, you must restart the server. If you attempt activation through Settings → Activation directly, it will fail because evaluation keys are not upgradeable in place.
This is the official Microsoft‑supported path, and once the system reboots, you can confirm under winver or Settings that the edition is now Windows Server 2022 Standard.
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QQ.