: Real-time protection (including Microsoft Defender) must be turned off

Are these machines joining an or staying in a workgroup ?

command in a standard Command Prompt. You should see a different trailing number in the SID string compared to your pre-change records. Key Precautions for a Successful SID Change

For enterprise environments, automated deployment scripts, or data center management, a commercial license is required. Purchasing a license unlocks advanced features:

If you are passing the key via a batch file or a PowerShell script using the /K: switch, ensure there are no trailing spaces or missing hyphens. Wrapping the key string in double quotes is highly recommended if it contains special characters. 3. Missing Local Administrator Rights