If your server is on a private network without internet access, you can use the : Press Windows Key + R , type SLUI 04 , and press Enter.
Right-click This PC > Properties > Change product key . Enter your 25-character key, and the system will automatically attempt to verify it online.
The safest and most reliable way to activate Windows Server 2012 R2 is through official Microsoft methods using a legitimate product key or existing licensing agreements. 1. Activating with a Product Key download ativador windows server 2012 r2
Large organizations typically use or Active Directory-Based Activation .
Many users download the 180-day evaluation version and find they cannot activate it with a standard key. To convert an evaluation version to a full version (e.g., Standard), use the tool in an elevated Command Prompt: DISM /Online /Set-Edition:ServerStandard /ProductKey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX /AcceptEula Note: Replace "ServerStandard" with "ServerDatacenter" if applicable, and use your actual product key. 4. Enterprise & Volume Licensing If your server is on a private network
Windows Server 2012 and 2012 R2 reaching end of support - Microsoft Lifecycle
Open an elevated Command Prompt and type: slmgr.vbs /ipk YOUR-PRODUCT-KEY-HERE Follow this with slmgr.vbs /ato to trigger the activation process. 2. Telephone Activation for Offline Servers The safest and most reliable way to activate
Provide the displayed on your screen to the automated system.