: In Licensing Manager, right-click and "Activate Server," or use the Microsoft activation website.
The configuration for the licensing mode (Per User or Per Device) and the designated license server addresses are stored under:
To manually point an RDS host to a specific licensing server via the registry:
: Use Server Manager to add "Remote Desktop Licensing". rds cal license registry key free
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\LicenseServers
You do not need to rely on high-risk registry hacks or untrusted third-party "free keys" to run remote desktop environments. Microsoft and the open-source ecosystem provide completely free, legal options for remote management and testing. Windows Built-in Administrative RDP (Free Forever)
Keep development servers that utilize grace period resets strictly isolated from production Active Directory domains to prevent configuration drift. : In Licensing Manager, right-click and "Activate Server,"
Right-click the RCM folder and select to save a backup file. Step 2: Take Ownership of the GracePeriod Key
The single, correct, and sustainable approach is to set up a proper RDS licensing infrastructure:
If you have 5 users, buy them Windows 10/11 Pro workstations. Windows Pro allows 1 remote session natively (Remote Desktop). Combined with Quick Assist or a free VPN, you avoid the RDS CAL ecosystem entirely. Step 2: Take Ownership of the GracePeriod Key
If you need more than two concurrent connections (i.e., a true multi-user environment), you must install the RDS Session Host role, which immediately requires an RDS CAL for every user or device connecting. This is a hard technical and legal requirement. There is no registry key that provides a permanent "free" license.
Type Administrators (or the specific local admin group account), click , and click OK .