Windows stores RDS licensing data in different registry paths depending on whether you are looking at the or the RD Session Host (Client) . 1. The RD Licensing Server Database Path

If a client cannot connect due to “no license available” but should have one, delete the MSLicensing key (after backup) and reconnect.

Click , change the Owner to Administrators , and click OK.

and restarting the Remote Desktop Licensing service forces the system to regenerate them. Forcing Licensing Mode:

Doing so will completely break Remote Desktop Services, requiring a repair installation or full server rebuild.