Step1. Install Terminal Server Role from Configure your server wizard Step2. Install Terminal Server Licensing from windows components Step3. Stop Terminal licensing service from Services Step4. Go to %systemroot%\system32\LServer and then copy TLSLic.edb edb.chk to another place for backup against any disaster Step5. Delete both files from their original place Step6. Run Regedit for registry editing Step7. Go to the following key HKEY_LOCAL_MACHINE\Software\Microsoft\MSLicensing Step8. Delete subkey named "Parameters" you can delete all subkeys Step9. At this step go to client-side and run Regedit, then try to delete all subkeys in the "HKEY_LOCAL_MACHINE\Software\Microsoft\MSLicen sing " Do NOT connect yet to the terminal server with the client Step10. From Server-side, Change the date on the server to lets says year 2010 Step11. Start the Terminal licensing service Step12. From Client-side, connect the client to the Terminal server Step14-1. From Server-side, return date on the server to current date Note that windows recreated new keys in registry and Lserver folder