Windows 10 Turned Black and White

About an hour ago my Windows 10 went black and white. On the loading screen and the sign-in screen, and on other users, the colours are normal. As soon as I login to my user, everything goes black and white. When I open up my monitor's menu using the physical buttons, the menu is in colour. I checked the settings and they are normal. I also check my Nvidia Control Panel and everything is normal there.
 
Question Info
Last updated August 15, 2018 Views 57,894 Applies to:
Answer
Try this Screen Filter keyboard shortcut:

Window + Ctrl + C
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Dell Precision M6800 - Core i7, 16GB RAM, nVIdia Quadro, 128GB SSD, 1TB HDD

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