How to convert Windows Server 2012 R2 Standard Evaluation into Full version
1) Open cdm as Administrator
2) Digit:
DISM /online /Get-TargetEditions
3) Press Enter
4) Digit:
DISM /online /Set-Edition:ServerStandard /ProductKey:DBGBW-NPF86-BJVTX-K3WKJ-MTB6V /AcceptEula
5) Press Enter and wait
6) Reboot the system
Now you have converted the evaluation version into full ones.
How to convert Windows Server 2012 R2 Datacenter Evaluation into Full version
1) Open cdm as Administrator
2) Digit:
DISM /online /Get-TargetEditions
3) Press Enter
4) Digit:
DISM /online /Set-Edition:ServerStandard /ProductKey:Y4TGP-NPTV9-HTC2H-7MGQ3-DV4TW /AcceptEula
5) Press Enter and wait
6) Reboot the system
Now you have converted the evaluation version into full ones.