It worked by changing product key

Awesome,, my Server 2019 Std. was on it´s last 3 days of Evaluation,, after I have used all the rearms. This is my video editing server,, I am on vacation and it would be a pain to have to change systems now.

I bought the key, and it did not work. But as my server was an Evaluation. I ran the fowling command to change that :

DISM.exe /online /Set-Edition:ServerStandard /ProductKey:N69G4-B89J2-4G8F4-WWYCC-J464C /AcceptEula

I ran it as administrator, and it worked and the server was no longer an Evaluation server. Well after a reboot that is.
But now I was able to activate the Server 2019 Std. with the KEY I just got for just a few €'s. - Awesome

Fantastic, Thx for the support!

perfekt! i dön't know for how many cores is this license good
Thanks

Perfect and fast. Good price