I have installed server 2019 evaluation with desktop experience and am now trying to activate my purchased license.
I am running the command DISM /Online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula
What I get is:
Deployment Image Servicing and Management Tool Version: 10.0.17763.1282
Image Version: 10.0.17763.1339
The specified product key could not be validated.
Check that the specified product key is valid and that it matches the target edition.