Everything was working fine yesterday and went to shutdown the PC, which had some updates needing to be updated and installed. Clicked that and went to bed. The next day turned my computer on and it got stuck at a black screen with a flashing underscore in the top left corner. After searching the net for solutions I still haven’t found anything. The drive with the operating system shows up where it’s supposed to in the bios screen, and whenever I try to boot from it, it just goes back to the black screen with flashing underscore. I don’t have any option to start in safe mode anywhere, and I don’t have the windows 7 installation disc either. What can I do?