Are you trying to or just auditing?
If you aren't looking for CALs, but rather the Windows Server OS key (to activate the server itself), and the server is currently running, you can retrieve this via PowerShell.
Ensure you know if you are using Per User or Per Device CALs, as this dictates how the server manages the licenses, though it does not change the key itself.
When moving or reinstalling your RDS CALs, Microsoft's activation wizard will ask for one of the following validation methods instead of a physical key: Purchase Method Required Information for Recovery Authorization Number + License Number Select / Enterprise Agreement Enrollment Agreement Number Retail (Box/Digital) 25-Character Product Key Services Provider (SPLAs) Master Agreement Number To help tailor this process for your system, let me know: What version of Windows Server are you running? how to find rds license key
If you purchased your RDS licenses through the Microsoft Volume Licensing Service Center (VLSC), you can find your license key on the VLSC website. Here's how:
If your RDS CALs are part of a subscription (e.g., via CSP or certain M365 plans):
A unique identifier for a specific batch of CALs you purchased. Are you trying to or just auditing
Under the tab, you will see your License Server ID . This is a unique ID generated when you activate the server. 3. Find the License Key Pack ID
If none of the above methods work, you can contact Microsoft Support for assistance:
Check the inside sleeve or a dedicated card enclosed in the retail packaging. When moving or reinstalling your RDS CALs, Microsoft's
You do not "find" an RDS key like a Windows 11 key. You "retrieve" or "generate" a License Key Pack ID after purchasing RDS CALs.
How to Find Your RDS License Key: A Step-by-Step Guide Finding your Remote Desktop Services (RDS) license key—technically known as the License Server ID, Product Key, or Key Pack ID—is essential for activating your server, adding Client Access Licenses (CALs), or migrating to a new environment.
In the enterprise world, the is your true key. If you have that, Microsoft Clearinghouse can help you recover or move your licenses even if you've lost the original documentation. AI responses may include mistakes. Learn more
If you prefer the command line, you can pull licensing information using WMI (Windows Management Instrumentation). Open PowerShell as an Administrator and run: powershell