I see what you mean the first suggestion.
However, my window system crashs the whole system and halts, not just stops the lolminer, but the whole win10.
I need to reboot win10 after I discover this halted situation.
You can add the
--log on parameter to your *.bat file. The logs will be collected in the logs folder and you can study it at any time and find out which video card has problems.