Rds Cal License Registry Key [VALIDATED]

Use only for non-production or temporary lab environments. Microsoft does not support this for production servers.

After a reboot, the server will typically show 120 days remaining. However, this is a temporary fix; you must install valid CALs to avoid permanent lockout. rds cal license registry key

Under LicenseKeyStore, you’ll see subkeys like: Use only for non-production or temporary lab environments

LicenseKeyStore\00000001-0000-0000-0000-000000000000

Each GUID corresponds to a license key pack.
Inside each: After a reboot, the server will typically show

Example (PowerShell):

Get-ChildItem "HKLM:\SYSTEM\CurrentControlSet\Services\TermService\Parameters\LicenseKeyStore" | ForEach-Object 
    Get-ItemProperty $_.PSPath

This happens when the RDS service is running. You must stop TermService before certain deletions, especially GracePeriod.