The other day my computer (I'm using a laptop.) just shut down on me. I thought it overheated cause it has happened before. But when i turn it on it stays at a black screen for like 5 - 10 minutes then it goes to the loading screen. I don't get a chance to go into the bios or boot in safe mode cause it skips that part. I know it's not a virus cause I have only downloaded games off of steam witch is safe. Please help me.