Sorry I'm no good with computer so please bear with me. I have a Dell desktop XPS 8930 and have Windows 11. All of a sudden today the monitor showed a horizontal line at the lower end of the screen which flickered every couple of second. I've tried to fix it by fiddling with my graphic display. I've accidentally disabled my Intel graphic display (can't remember what it is) and now my monitor is a complete blank and I can't see a thing! I've forced shut down my computer and switched it back on but obviously still nothing happened. As I'm unable to see anything once I switched on the power, I can't do anything even log into my account. Please can anyone help? Thank you!