Today when I opened my computer it has all these speckled pixels in lines across the screen. I went to a friend that know more about tech. They told me to restart my computer, so I did. When I turned it back on in the place of the pixels were black lines going across the screen. They change where and how many there are based on what I an going on the screen. Some times they all disappear and when I change tabs they come back with a vengeance. After doing extensive research I had come to the conclusion that they were caused from the system over heating. I want to know if there is anywhere in the Chicago area that is trusted to make a diagnosis on what it is and fix it if possible.
Any advice and information on this would be great. Also to add the lines don’t appear in screenshotted photos of my screen.
Thanks for any help!