A. The error you're experiencing is the result of a temporary license that Microsoft issued before you activated the Terminal Services License server. Because you didn't remove this temporary license, it expired after the 90-day trial period.

To resolve this error, perform the following steps to delete the license subkey from the registry:

  1. Start a registry editor (e.g., regedit.exe).
  2. Navigate to the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSLicensing\Store subkey.
  3. Locate the LICENSE000 or LICENSE00n (e.g., LICENSE001, LICENSE002) entry.
  4. Right-click this subkey, select Export from the context menu, and follow the prompts until you've successfully backed up the subkey.
  5. Delete the subkey by pressing the Del key.
  6. Close the registry editor.

If you experience any problems after performing the previous steps, you can restore the subkey value by double-clicking the exported registry file.