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Rds Cal License Registry | Key

Upon reboot, Windows regenerates the key and resets the 120-day countdown. 3. Fixing Client-Side Licensing Errors via Registry

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TermServLicensing\Parameters

When a device connects to an RD Session Host, the host issues a hardware-bound token or digital license. The client machine caches this license locally in the following registry path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSLicensing Use code with caution.

This contains the configuration for the discovery of the licensing server, license types (Per User vs. Per Device), and compliance status. 3. Client-Side Device CAL Storage (The MSLicensing Key) rds cal license registry key

Once your RDS host obtains a CAL from a license server, it stores the token locally to avoid re-querying the license server for every user connection. This data resides under:

When a client (computer) is issued a "Per Device" CAL, a token is stored locally on that client's registry so it can present it during future connections. Microsoft Learn HKEY_LOCAL_MACHINE\Software\Microsoft\MSLicensing Troubleshooting

Running the RDP client as an administrator forces Windows to recreate the deleted MSLicensing registry key and pull a clean, valid Per-Device CAL from the license server. Configuring Licensing Modes via Command Line and Registry Upon reboot, Windows regenerates the key and resets

: Contains the digital timer tracking the remaining days of the initial 120-day evaluation window.

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Microsoft does not document these registry keys in the Windows UI; they are stored in binary format and encrypted. Direct manipulation of these keys is unsupported and can lead to licensing failures. The client machine caches this license locally in

: Look for the LicensingMode value in the right pane. If it doesn't exist, right-click and select New > DWORD (32-bit) Value, naming it LicensingMode .

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.

Specifies the type of CALs the server will request. 2 = Per Device Licensing Mode 4 = Per User Licensing Mode 5 = Not Configured (Workgroup/Default) Specifying the Licensing Server Name