Helping a friend with Windows 10 Home, update 1803 installed. She is losing her eyesight and a relative tried to help her by making some changes to the display which resulted in pastel looking colors that appear to be in grayscale and/or inverted. The hoped for result was to provide more contrast for viewing email. Can't contact the relative to find out what was done. So far I have tried the following: Display Settings - Couldn't find anything that seemed to address the issue. Personalize - The only thing I found that might relate was "Colors" which asked me to pick a color background but all the options were washed out and I could see no colors. Ease of Access - One option is "Make the computer easier to see". I couldn't find anything there that seemed to make any difference. In searching the internet, one recommendation I saw was to uninstall the display adapter and then reinstall it. Since this problem was caused by a specific change to a setting or settings, I was reluctant to do the uninstall and restart. Any suggestions?