Wife turned on her Dell Win 10 desktop this morning and there were MS updates that downloaded and installed. As a result, her video display's ratio got severely changed. What should be running at 16:9 ratio got switched to another ratio and when I tried to change it back to 1920x1080, all the options available were either 4:3 or 5:4 ratios and the largest was 1280 pixels in width.
I finally figured out that Roll Back the Driver worked.
I finally figured out that Roll Back the Driver worked.