13 May 2019

Problem 1

When attempting to activate Windows Server 2019 after installation is already complete generates the error code “0x80070490: The product key you entered didn’t work”.

Solution 1 (Bad)

Reinstall Windows and input the license code during installation

Solution 2 (Good)

Activate Windows using the command-line. The error seems to be limited to the GUI.

c:\Windows\System32\slmgr.vbs /ipk [LICENSE_MAK_KEY]
References:


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