Hello, I have a Dell XPS 8700 with a Nvidia GTX 745 graphics card running windows 10. I shut down and unplugged the computer a while back and upon plugging it back in I was faced with a black screen with some lit-up pixels after widows logo. I have checked and confirmed that the pixels aren't dead on the monitor and I have also swapped HDMI cords with no prevail. The pixels aren't there during boot either. This PC was used for gaming and surfing the web. I have tried turning it off and unplugging then holding the power button but that didn't work. Any suggestions will help. Thank you.