I am getting really frustrated with Mathematica 11.1. It crashes spontaneously during calculations, typing, editing expressions, etc. In previous versions you could kill the kernel process and still save the notebook with your workings.
Now it just says: "Mathematica 11.1 has stopped working" and your only option is to close the program loosing everything.
I am saving all variables regularly using
Save["file","*"]` but have to type in all evaluations again. It never happened in previous versions.
I uploaded the image of the crash here:
My system is Windows 7 Professional, 64 bit, Dell Optiplex 9010, university site license.