Hi - I am sorry you are having these problems.
However you have not responded to the questions I asked in the other thread, so it is very hard to get you up and running. I can assure you that the current Octane 3 version of the plugin is absolutely the most robust and reliable version of the plugin, and if we go through a simple set of steps, you will be up and running with it.
Firstly - does the current Octane Standalone 3.05.3 version work (ie. does it start and render) on your new PC? If not, then it is most probably an Nividia driver issue. You should install the latest driver (375?). Once we have established that Octane Standalone works, getting the Poser plugin working should be simple.