Rds Cal License Registry Key Now

Remote Desktop Services (RDS) Client Access License (CAL) Registry Key: A Complete Guide

Connect to the RDS host. Running as an administrator allows the application to recreate the deleted registry keys and pull a fresh CAL from the server. 2. RDS Server-Side Licensing Registry Keys

Click , change the Owner from SYSTEM to your local Administrators group, and click Apply .

In the tool, right-click the license server, click Create Report , and select CAL Usage Microsoft Learn. 5. Best Practices and Warnings rds cal license registry key

When RDS is installed, Microsoft grants a 120-day grace period where users can connect without a valid CAL. The status and countdown of this grace period are stored here: HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod

$RDSCALMode = 4 # 4 = Per User, 2 = Per Device $RDSlicServer = "<server_full_fqdn>"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TermServLicensing\Parameters Remote Desktop Services (RDS) Client Access License (CAL)

HKLM\SYSTEM\CurrentControlSet\Services\TermService\Parameters\LicenseServers

For domain-joined machines, it is recommended to use Group Policy to set the License Server and Licensing Mode ( Computer Configuration > Policies > Administrative Templates > Windows Components > Remote Desktop Services > RD Licensing ) rather than direct registry edits.

On Windows Vista and newer versions, simply deleting the MSLicensing key may cause subsequent connection attempts to fail. To resolve this, right-click the shortcut and select Run as Administrator . Restricted users lack permissions to write registry entries to HKEY_LOCAL_MACHINE , so running with administrative credentials provides the necessary rights to rewrite the key. RDS Server-Side Licensing Registry Keys Click , change

Open the Start menu, type regedit , and run the as an Administrator. Navigate to the following path:

Manually changing registry keys on individual session hosts can cause configuration drift. Use Group Policies ( Computer Configuration > Policies > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Licensing ) to enforce these settings cleanly across environments.