via GPEDIT: Computer Config > Admin Templates > Windows Components > Remote Desktop Services > RD Session Host > Connections → Set "Limit number of connections" to 999999 .
net start TermService net start UmRdpService termsrv.dll patch windows server 2016
Reinstall Windows Server 2016 using “Keep personal files and apps” (only for same build). via GPEDIT: Computer Config > Admin Templates >
Your Activation Key is invalid
There are a couple reasons why this might have happened:
1) you don’t have an activation key and entered a fake one
2) you entered the wrong code
3.) You didn't sign up properly
Please double-check that you have downloaded your activation key according to the instructions in the tutorial video.