Thanks for reply! I managed to exit, but only save & exit option worked, not the exit without changes. Not sure why. I just found this odd. I ran a virus scan it didn't find anything it said.
My laptop was left on for a few hours. A MSI Leopard 8RE. I've left it on a few times over the year. But when I came back to it after being out it was suddenly in BIOS. I left it while being in windows, what could cause it to randomly enter bios?