Hi.
Sorry about the name, it's my eyes, I'm halfway through having cataracts removed from both eyes, so I've got one eye that confuses the other as it is totally out of focus. I'm seeing everything double. Do you mind if I call you baggins for convenience:)

I've followed your instructions.
P8 installed with no content, using option 1. Runtime located in Documents.

Fired up P8 and clicked on a few things, including library, but no crashes. Library is only showing as a docked pallete, top right corner of screen.

Internet access okay, start menu access a tiny bit slower.

Processes showing:
Acer Empowering Technology (sorry forgot to mention that)
Untitled - Smith Micro Poser

Exited Poser, internet access okay, start menu access now up to 100% speed.

So far, okay