Why is my computer screen have a green tint and messed up colors?

unplug it

1.screens, especially older screens/televisions. Burn images that are displayed on them into them. If you do a lot of things with green as an active color that is send out by the monitor, the monitor will automatically burn that color into the screen which makes you see everything more green. This is also the reason why screen-savers are called screen savers.. They save your screen when you are afk, so the images the screen send out changes and nothing will burn into them. 2.You can also try out monitor settings, on a side button on your PC screen there is probably a button that makes you go to the options of your screen. Often in these option menu's there also is a color 'balance' which makes you enabled to change the percentage of a color that will be send out. For example, you can put green on 50 percent. so everything will be a little less green 3. Your cable of your monitor might be broken. or not plugged in well, What this does it doesn't receive the full information that is send out by your PC. Making for example, missing a color or no sound output available on your monitor.