@bliblubli hi. Why after writing your settings (that in red box) Blender cannot found available Gpus for pathtracing on user pref and also cannot use Gpu for LuxCoreRender too:
https://forums.luxcorerender.org/download/file.php?id=8258&sid=a745a5872ba36c96447a9fcdf00e1d1c&mode=view
BUT If remove this settings from regedit it works fine. So that settings are so important for me?