Configure licensing modes and servers via the registry, ideal for non-GPO environments. Microsoft Learn Licensing Mode: LicensingMode (DWORD) in ...\RCM\Licensing Core (Per Device) or (Per User). License Server: Add the server IP/name under ...\RCM\LicenseServers Workgroup Auth: DisableWorkgroupAuthEnforcement (DWORD) to ...\Services\TermServLicensing\Parameters Microsoft Learn 2. Resetting the 120-Day Grace Period To extend access, you can delete the "timebomb" key. Navigate to ...\Control\Terminal Server\RCM\GracePeriod
Deleting the binary value inside the GracePeriod key and restarting the server forces the system to regenerate the timer, effectively restarting the 120-day countdown.
Is there any legitimate way to get RDS CALs for free? Yes—for 120 days.
The registry methods described in this article—particularly resetting the grace period and deleting the MSLicensing key—are intended for . Microsoft explicitly states that resetting the grace period is not a substitute for purchasing and installing the required Remote Desktop CALs, and this procedure should only be performed in a non-production (i.e., test or lab) environment.
If you are an IT provider or developer, Microsoft’s Action Pack provides internal-use RDS CALs at a fraction of the retail cost. rds cal license registry key free
If your staff shifts between multiple devices, buy User CALs . If multiple people share one workstation (like a kiosk), buy Device CALs . Choosing the right one can cut your costs in half.
Enable and match it to your purchased license type ( Per User or Per Device ). Conclusion
Before diving into registry keys, it's essential to understand the built-in safety net Microsoft provides. When you install the Remote Desktop Session Host (RDSH) role, you are automatically granted a . This period allows organizations to configure and test their RDS environment before purchasing Client Access Licenses (CALs). During this time, the system functions fully without requiring any CALs to be installed.
Windows Server allows two free concurrent connections for administrative maintenance without requiring any RDS CALs. Key RDS Registry Locations Configure licensing modes and servers via the registry,
When administrators search for "RDS CAL license registry key free," they are usually looking for one of three things: a way to reset the 120-day grace period, a method to back up existing licenses, or a workaround for licensing errors.
: Back in the Permissions window, select your user/group and check the Full Control box.
Another critical aspect of RDS licensing management involves configuring the licensing mode directly through the registry. In workgroup environments, especially, Group Policy might not apply, making registry edits essential. The key for licensing configuration is:
While this reset may function temporarily in isolated lab setups, repeating this process to obtain "free" permanent licensing in a production environment breaks the operating system's terms of service and exposes the network to substantial operational issues. Risks of Using Registry Hacks for Free RDS CALs Resetting the 120-Day Grace Period To extend access,
Within this registry key, you will find a REG_BINARY entry whose name begins with the string L$RTMTIMEBOMB . This binary value is the system's internal countdown timer.
Press Win + R , type regedit , and hit Enter.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod .
However, there are some scenarios where you might be able to obtain RDS CAL licenses at no cost:
You can also use a registry value to specify one or more license servers. This is particularly useful when configuring multiple RDSH servers. The configuration is stored under the same RCM key.
When you install the Remote Desktop Session Host (RDSH) role on Windows Server, Microsoft automatically grants a . During this timeframe, users can establish remote desktop sessions without an active RDS licensing server.