Hello guys,
First of all THANK YOU Martin, you were fantastic!
Martin found the culprit and here is the solution, in case you guys may have similar issues:
Nahimi Service, which comes with an audio enhancer software for the motherboard’s audio board. In my case, Sonic Suite 3.
Since I don’t use that thing, or the motherboard’s audio, I completely uninstalled Sonic Suite 3.
Then, I went to Windows’ Service and disabled Nahimi Service.
Voila, No more video crash or Cubase freeze.
I hope this helps
Alex