Hello, I was rebooting my computer as it said do not power off computer while rebooting. My child turn it off. the fans come on sounds like it's on, lights in the front left are on but the screen is black. PLEASE HELP. Its a toshiba satellite L745 - S4110
Can you see some loading screens or the manufacturer's logo while loading, or the screen is completely black? I would try resetting BIOS by removing the CMOS battery for a few seconds. You can check the laptop's manual to locate the battery. If you have warranty, I strongly recommend you to contact the reseller before doing anything.