How to remove a computer from Windows Server 2012 R2 Essentials

connectorwindows-server-2012-r2

I have the following computers connected to my Windows Server 2012 R2 Essentials:
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When I try to Remove the computer with the tasks menu, it fails unexpectedly with the following error:
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Following the provided link (https://technet.microsoft.com/library/jj730365.aspx) does not give me any information on how to troubleshoot this issue.

How can I do so?

The machine is not available anymore, as I forgot to remove the instance upon reinstallation (which is now DESKTOP-03JUF28), so there's no chance to reconnect (except with a fresh installation, with the same naming – which I want to avoid).

Best Answer

Did you already try it with the Remove-WssComputer cmdlet in PowerShell? The Shell is always the strongest option in my opinion.

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