Downgrade Windows Server 2022/2019 Datacenter to Standard

This guide explains how to downgrade Windows Server Datacenter to Standard edition (Windows Server 2019 and 2022) without reformatting. While Microsoft doesn't officially support this, these methods work in practice. Always back up your system before proceeding. MiniTool ShadowMaker is recommended for this task.

Verify Your Current Version:

Before starting, confirm your current Windows Server version. Navigate to Control Panel > System and Security > System.

Downgrade Methods:

Two methods are presented: a clean install (recommended) and a registry edit (unofficial).

Method 1: Clean Install (Recommended)

A clean install is the officially supported way to change editions. You cannot directly downgrade.

1. Download the Windows Server 2022/2019 Standard ISO from Microsoft. Create bootable media.
2. Obtain a valid retail or volume license key for Windows Server Standard (2022 or 2019).
3. Boot from the installation media.
4. Select language, time/date, and keyboard settings. Click Next.
5. Click Install Now.
6. Choose the correct operating system version (e.g., "Windows Server 2022 Standard Evaluation (Desktop Experience)").
7. Follow the on-screen instructions to complete the installation.

Method 2: Registry Editor (Unofficial and Risky)

This method modifies registry entries. Proceed with extreme caution. Incorrect changes can damage your system.

1. Open the Run dialog (Windows key R), type regedit, and press Enter.
2. Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion

3. Modify the following registry values:
   • EditionID: Change to ServerStandard
   • ProductName: Change to Windows Server 2019 Standard or Windows Server 2022 Standard (depending on your target)
   • CompositionEditionID: Change to ServerStandard (present in Windows Server 2019 and 2022)

Note: The CompositionEditionID parameter is only present in Windows Server 2019 and 2022.

4. Do not restart the server after modifying the registry.
5. Mount the Windows Server Standard installation ISO and run setup.exe.
6. Choose the "Upgrade" option and select the appropriate Windows Server Standard edition.

Conclusion:

Downgrading Windows Server Datacenter to Standard is possible, but a clean install is the safer and recommended approach. The registry edit method is provided for informational purposes only and should be used with extreme caution. Remember to always back up your data before attempting either method. For assistance with MiniTool ShadowMaker, contact [email protected]

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