Windows Server 2016 Activation Fails Error 0x80040155.

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Yousef Howmy

We have a Windows Server 2016 Standard version that is upgraded from Evaluation and we are having issues activating it.

The Change product key button is not responsive and we get the following error, (we can't activate windows on this device right now Error 0x80040155.)

I tried to activate it with the following command, SLMGR.vbs /ipk xxxx-xxxx-xxxx-xxxx and i get (Installed product key xxxx-xxxx-xxxx-xxxx successfully) but it won't really activate.

How can i activate it?

P.S it is a DC.

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