Can I hope to get any feedback, at least about the cause of the crash if not solution? Not being able to play Arma 3 is frustrating, the problem never goes away!

Just upgraded to latest video driver 340.52 but the game keeps crashing... I've uploaded today's dump files as RAR here.

Another crash! I can't even reach the next savepoint in career mode.
I've uploaded today's crash files, too...

I have attached the winrar file with the dump files for two recent crashes. Hope this helps to source the trouble!

I changed to Windows 7 and installed Arma 3 once again but the problem persists :(
I also tried older Geforce drivers with no success.
Can you tell from the dump files what is causing the crashes? Is it driver-related or hardware related? Should I try another video card, for example?