To convert a Windows Server 2022 Evaluation version to a fully licensed version without reinstalling, use the DISM command-line tool. You will need a valid, full retail or volume license key for the corresponding edition.

Step-by-Step Conversion

1. **Open PowerShell as Administrator:**
	Right-click the Start button and select **Terminal (Admin)** or **PowerShell (Admin)**.
2. **Find your target edition:**
	Run the following command to check the editions you can upgrade to:

    PowerShell (Admin)
```
  dism.exe /online /Get-TargetEditions
```
3. Set the edition and enter the key: Run the DISM command. Be sure to match the edition and replace XXXXX-... with your actual product key:

   For Standard Edition:
```
DISM.exe /online /Set-Edition:<EditionType> /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula
```
4.  Reboot the server
	Once the process completes (it may take a few minutes), restart the computer.
5. Activate the license:
   Once logged back in, force the online activation to ensure your retail key registers.

   Command Prompt (Admin)
```
slmgr.vbs /ato
```

> [!NOTE] Important Notes
> - **Edition Matching:** You cannot downgrade. For example, if you are running an Evaluation of Datacenter, you must use a Datacenter retail key to upgrade it.
> - **Generic KMS Keys:** If you are using a Volume License Service Center (VLSC) or setting up a KMS Host, you may need to use a public Microsoft KMS setup key first to convert the Evaluation edition, and then apply your organization's activation key