1.Install LightWave

2.Start Lightwave, when you are asked for a license
simply DRAG LICENSE.LWK into the Windows
(or you can copy it to the bin folder
before starting lightwave)

3.That is it . Restart Lightwabe and Enjoy it.

NB : if you have previous fake licenses or those
patched dll, clean your mess first
licenses are stored either in the bin folder
or in your user profile
C:Users[USER].NewTekLightWave2018.0.1licenses