if your question is about the highlighted part of picture.. in my experience is your CPU processor is getting too hot turn of your your computer first for couple of hours and after that do some re-cores-ing your mesh generation. your problem will be fixed.
I have used Kernel in my recent work on hybrid transport network development. I can suggest you to follow and see the tutorial that I have attached in below. Actually if your RAM is 8GB or more then you can clean your disk space especially the junk files from the C drive. Then follow the link, hope your problem can be fixed.