Ubuntu 14.04 won't restart, what should I do?

Question

ubuntu

My favorite Ubuntu won't reboot. The first time the purple monitor hung for an hour, I forcibly exited it, after which the left errors constantly started popping up out of the blue.
I had to reinstall the OS and all programs.
And now again the same story, yesterday I sent it to reboot, the OS turned off and still does not turn on (the purple empty screen hangs).
Now I'm waiting. A day has passed, if it turns out that you need to wait longer, I won’t be surprised :)
Specialists in linux, tell me if there is a way out of this situation?

Answer 1

Your disk has crashed, maybe. Or the memory is failing. Yes, little.

Answer 2

I had a similar problem, but not with ubuntu and not necessarily with booting (I could get up on boot before rebooting, and just get up and "stand" during work) - it turned out to be my mother.