It should immediately turn off the color filter that makes your Windows 10 black and white. Another way to fix this problem is to open Settings and go to Ease of Access. On the left, choose “Colour & high contrast.”. On the right, you see the color filter that is selected as the default: Grayscale. Look for the switch that says “Apply
Many new monitors are limited on the options you can adjust. Some may be present or not. 1) Monitor temperature - color. On the monitor's menu look for an option temperature/color. Some monitors define this as temperature or as the specification. Choose: 6500°K, D65 or sRGB; Do not use, warm, cool, blueish.
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