By default, the GracePeriod key is protected by restricted permissions. Right-click the key, select , click Advanced , and change the Owner to Administrators . Grant full control to the Administrators group.
: Indicates the server is utilizing a built-in web client or an unconfigured/evaluation state. LicenseServers
The is more than just a technical path; it is the brain of your Remote Desktop Services licensing environment. Whether you are verifying the licensing mode DWORD, resetting the GracePeriod "timebomb," or troubleshooting connectivity issues, mastering these registry locations provides deep control over your RDS deployment.
Get-WmiObject -Class Win32_TSLicenseKeyPack rds cal license registry key
If a client cannot connect due to “no license available” but should have one, delete the MSLicensing key (after backup) and reconnect.
Remote Desktop Services (RDS) licensing can be one of the more confusing aspects of managing a Windows Server environment. For IT administrators, understanding the underlying configuration is crucial, and at the heart of this lies the . This guide will serve as your comprehensive resource for understanding, locating, and managing these critical registry settings.
To delete or modify this key, you must right-click the GracePeriod folder, go to Permissions , and take ownership from SYSTEM to grant your admin account full control. 3. The Client-Side Cached License Key By default, the GracePeriod key is protected by
By default, the system protects this key. Right-click the GracePeriod folder, select , click Advanced , and change the owner from SYSTEM to your local Administrators group. Grant your account Full Control .
Doing so will completely break Remote Desktop Services, requiring a repair installation or full server rebuild.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TermServLicensing\Parameters : Indicates the server is utilizing a built-in
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HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TermService\Parameters\LicenseServers\SpecifiedLicenseServers Policy-Based Settings : Configures licensing via GPO.
When using RDS CALs, the client machine stores its issued hardware token locally. Path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSLicensing Subkeys: HardwareID and Store