To activate the Windows Server, it may be necessary to enter the activation key via the command line / CMD with administrator rights. The first step is to check whether the correct server version is already installed on the device:
If the "Standard Evaluation" or a version other than the key is installed, as shown in the following image, you must first perform a version change.

You can switch between versions by entering the following commands via the command line / CMD with administrator rights:
| Versão do servidor | Comando com chave de ativação genérica |
| Windows Server 2012 R2 Essentials | dism /online /set-edition:serverEssentials /productkey:K2XGM-NMBT3-2R6Q8-WF2FK-P36R2 /accepteula |
| Windows Server 2012 R2 Standard | dism /online /set-edition:serverStandard /productkey:DBGBW-NPF86-BJVTX-K3WKJ-MTB6V /accepteula |
| Centro de dados do Windows Server 2012 R2 | dism /online /set-edition:serverDatacenter /productkey:Y4TGP-NPTV9-HTC2H-7MGQ3-DV4TW /accepteula |
| Fundamentos do Windows Server 2016 | dism /online /set-edition:serverEssentials /productkey:JCKRF-N37P4-C2D82-9YXRT-4M63B /accepteula |
| Windows Server 2016 Standard | dism /online /set-edition:serverStandard /productkey:WC2BQ-8NRM3-FDDYY-2BFGV-KHKQY /accepteula |
| Centro de dados do Windows Server 2016 | dism /online /set-edition:serverDatacenter /productkey:CB7KF-BWN84-R7R2Y-793K2-8XDDG /accepteula |
| Fundamentos do Windows Server 2019 | dism /online /set-edition:serverEssentials /productkey:WVDHN-86M7X-466P6-VHXV7-YY726 /accepteula |
| Windows Server 2019 Standard | dism /online /set-edition:serverStandard /productkey:N69G4-B89J2-4G8F4-WWYCC-J464C /accepteula |
| Centro de dados do Windows Server 2019 | dism /online /set-edition:serverDatacenter /productkey:WMDGN-G9PQG-XVVXX-R3X43-63DFG /accepteula |
| Windows Server 2022 Standard | dism /online /set-edition:serverStandard /productkey:VDYBN-27WPP-V4HQT-9VMD4-VMK7H /accepteula |
| Centro de dados do Windows Server 2022 | dism /online /set-edition:serverDatacenter /productkey:WX4NM-KYWYW-QJJR4-XV3QB-6VM33 /accepteula |
| Windows Server 2025 Standard | dism /online /set-edition:serverStandard /productkey:TVRH6-WHNXV-R9WG3-9XRFY-MY832 /accepteula |
| Centro de dados do Windows Server 2025 | dism /online /set-edition:serverDatacenter /productkey:D764K-2NDRG-47T6Q-P8T8W-YP6DF /accepteula |
Depois de mudares para uma versão diferente, deves verificar se existem actualizações, instalá-las e reiniciar o servidor uma vez.
Once you have the desired target version on the server.

Activate the server by entering the following command via the command line / CMD with administrator rights. Please note that the character string AAAAA-BBBBB-CCCCC-DDDDD-DDD-EEEEE must be replaced by the key you received from us:
slmgr /ipk AAAAA-BBBBB-CCCCC-DDDDD-EEEEE
This would read as follows for the key "HJ1HG-HU44Z-68HJP-V79W4-1R2R4":
slmgr /ipk HJ1HG-HU44Z-68HJP-V79W4-1R2R4

Activation of the key can be forced by entering a second command:
slmgr /ato
If you have any questions or problems with activation, please contact us.
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