If you have valid CALs, you can manually configure settings at HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\Licensing Core : : Set to 2 (Per Device) or 4 (Per User).
Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod
Remote Desktop Services (RDS) is a technology developed by Microsoft that allows users to access and interact with a Windows desktop or application remotely. To use RDS, organizations need to purchase Client Access Licenses (CALs) for each user or device that will be accessing the service. However, there are instances where organizations may be looking for a free RDS CAL license registry key. In this essay, we will explore the concept of RDS CAL licensing, the registry key, and the implications of using a free license. rds cal license registry key free
If you purchased User CALs but the server is set to Device mode, edit this DWORD:
For testing, development, and validation phases, Microsoft offers the . This provides 180 days of free, fully functional server deployment, including evaluation periods for the RDS role to build out proof-of-concept environments legally. Open-Source Remote Desktop Alternatives If you have valid CALs, you can manually
By default, even administrators cannot modify this key. To reset the countdown back to 120 days for testing purposes:
While the registry can bypass technical blocks, it does not provide a legal license. Microsoft provides the RD Licensing Manager for proper activation. However, there are instances where organizations may be
Note: This is used for workgroup deployments where standard domain authentication isn't available. The "Free" Question: Resetting the Grace Period
For the changes to take effect, restart the Remote Desktop Services service via services.msc , or completely reboot the server. Upon reboot, a new 120-day counter will begin. Rebuilding a Corrupt RDS CAL Registry Instance
If your server refuses to recognize a valid license server, you can delete the cached license ID:
If you are operating a business, avoid "free key" sites which often distribute malware or pirated VLK data.