How old is your computer? DId you have something changed/repaired in it recently? DOn't know if you remember when I was having problems with mine? ANd it took half a dozen computer geeks and months to find the problem
The motherboard and hard drive were not compatible....even though they were made by the same company....when it was all sent back, they kept changing the hard drive over and over and they kept burning out....it was simply an incompatibility issue
. I got a different motherboard installed, a new hard drive, and it's been fine ever since. And it was all covered under warranty cuz it was the company's fault.
Hang on, I'll get a pic of what the screen looked like before the computer would shut down automatically.