Rds Cal License Registry Key -

The main registry key for RDS licensing is located under the hive. The specific path has changed slightly across different Windows Server versions, but for modern releases (Server 2012 R2, 2016, 2019, 2022, and 2025), the primary location is:

If the RDS license grace period has expired and you cannot connect to install licenses, you can sometimes reset the grace period by deleting the Licensing registry keys (take a backup first):

For production, Microsoft recommends using official tools over direct registry edits: rds cal license registry key

New-Item "HKLM:\SYSTEM\CurrentControlSet\Services\TermService\Parameters\LicenseServers" -Force New-ItemProperty "HKLM:\SYSTEM\CurrentControlSet\Services\TermService\Parameters\LicenseServers" -Name SpecifiedLicenseServers -Value $RDSlicServer -PropertyType "MultiString" -Force

The registry keys for Remote Desktop Services (RDS) Client Access Licenses (CALs) The main registry key for RDS licensing is

: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TerminalServer Function : Controls multiple RDP session restrictions for single-user accounts via fSingleSessionPerUser :

Search for the "Remote Desktop Connection" app in your Start Menu, right-click it, and select Run as administrator . rds cal license registry key

Relaunch the Remote Desktop Connection client ( mstsc.exe ) .