After the very latest updates cannot load menu and top bar after login
I have no idea what is happening, but i had to reinstall my Ubuntu because of that.
Problem occurred again on the newly installed system. Before that it was just some large file copying. I had to shutdown my computer with power button, luckily next time, with some CPU ring error, and file lost the system came back.
It is a totally different hard drive also, as i'm using a portable one now, which is faster.