Attempted to use my laptop and a warning screen has appeared? It’s telling me my laptop shut down unexpectedly? It comes up with several options i.e. start in safe mode, start normally, start from last point used etc. etc. I’ve tried each of these and it just shuts down within a couple of seconds and starts all over again. The only thing I can think of is that I left the laptop on and the battery is now flat? What do you think?