PC freezes and the screen and the screen blue error, specifically says that the driver nv4_disp has stopped working
From my knowledge the nv4_disp file belongs to the graphic card driver and the nVidia GPU.
The screen fills in some points of lines and dots sometimes white and sometimes green ....
Well, this is mostly an indication of graphic card problems… looks a little bit like the GPU is faulty…
Do you have the same dots and lines on external monitor?
If same issue would be visible on 2nd monitor, the GPU is faulty…
Don’t think installation of other OS would help here… in my opinion the mobo (including the gpu) needs replacement…