Download and install Thea Render (or any plugin) from official site
Run Thea Render and select menu “Help” -> “License Form…”
Fill fields “Full Name” and “E-mail Address” with any values and press “OK”
Go to the Thea Render installation directory, find a file with name “license-XXXXXXXXXXXXXXXX.txt”
Open the license file, find the “License ID” line and copy it
Run the Keygen “trk.exe” and paste the “License ID” to the right field, then press “Generate”
Complete the appropriate fields and click “OK”, finally restart program. All done.
Read more: http://free.appnee.com/thea-render-all-plugins-universal-keygen-for-windows/#ixzz3fNR8P7kc