Thanks for reading this.
I was downloading a file (in a hurry, probably wasn't careful enough), and then a blue screen appeared on my main screen (the other screen was fine). The screen mentioned my video card, replacing a driver and instructions to restart in safe mode (nothing more specific like a file name). I tried to restart normally (i was in denial) and a black screen appeared with a blinking cursor. I know I can change the boot sequence and restart with a usb drive but I'm not really comfortable doing it on my own (I CAN make things worse, if such a thing is possible at this point).
It's a desktop Pc, with win XP
I also have access to a mac laptop