command prompt

Invalid License Key Error When Performing Windows Edition Upgrade

Last week, I decided to perform the in-place edition upgrade from Windows Server 2012 R2 Essentials to Windows Server 2012 R2 Standard on my home server as part of a multitude of things I’m working on at home right now. Following the TechNet article for the command to run and the impact and implications of doing the edition upgrade at I ran the command as instructed in the article but I kept getting a license key error stating that my license key was not valid.