apologies, indeed it has 4 cores my bad, don't know where i got that idea then...
The HDD has around 100gb free space...
I can give you a fair example of something that is happening constantly even on the simplest file with just like 6 walls and a roof,
using the Flyover tool it works smoothly and fantastic, but if i use the CTRL + middle button in the mouse, it just goes crazy and kinda looks the gfx are crashing or something, I don't believe this is from the GPU drivers as if it were when i go and click the flyover icon would do the same crashing effect but it doesn't... Any ideas ?