Disclaimer: This article is provided for educational and informational purposes only. Modifying registry keys to bypass Microsoft licensing (RDS CALs) is a violation of the Microsoft Software License Terms. This guide explains where these keys are located, how they function, and the risks associated with attempting to unlock them for free. Always purchase legitimate RDS CALs through an authorized reseller.
If your server refuses to recognize a valid license server, you can delete the cached license ID:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\LicenseWhile you cannot get a "free" license via the registry, you can view and manage your current licensing configuration. These keys are useful for troubleshooting legitimate licenses. rds cal license registry key free
Location:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM
Within this key, you will find several critical values: Disclaimer: This article is provided for educational and
| Registry Value | Purpose |
| :--- | :--- |
| Licensing Core | Stores the licensing mode (Per User or Per Device). |
| LSName | The name of the License Server your RDS host is trying to contact. |
| LSserver | The IP/Hostname of the license server. |
If you absolutely cannot pay for RDS CALs, do not hack the registry. Instead, use these legitimate alternatives: do not hack the registry. Instead
Before touching the registry, you must understand what you are trying to bypass. An RDS Client Access License (CAL) is a legal right for a user or device to connect to a Windows Server’s Remote Desktop Session Host (RDSH).